The Secret Infrastructure Beneath NYC - Cheddar Explains 

The mail system is the first version of the internet. A series of tubes for sending messages... And cats.

You can't just talk about a mysterious mirror room and just go on with the video

Sandhogs, cat launchers, chinese gangwars, ancient ships, and lost highways. There is some wild shit going on under NYC.

Ninja Turtles are living under Chinatown then.

Her: “Don’t randomly dig, let’s leave it to the professionals” Also Her: “Professionals cost the city 300 million a year in errors.”

Well this raises a lot more questions than it answers, that's for sure.

8:00 "So maybe dont just start digging on a random sidewalk, we should leave it to the professionals" Yeah because New Yorkers love taking their shovel for a spin on 5th Avenue every Saturday

Just ignore that ninja turtles have been living down there for decades

Imagine what's down further. Imagine how many people are underneath you while you're in new York City

New York is mind boggling, been there once, and very thankful for that opportunity. London is also equally impressive as far as how complex the underworld, if you will, is. I hope I could explore more of such older cities around the world.

1:31 The mnemonic tube??? So it's a tube that helps you remember something?

Imagine the secrets hiding under there

You forgot about the Draco sex trafficking tunnels.

You should work on making your sources more detailed. Stating facts like the ones on this video wich have almost no trace anywhare make people doubt about the content of your videos.

I literally have live in nyc for all of my life and never knew this

I can't find anything on that mirror room! Was hoping to find a picture or something. Anyone know what it's referred to as? It has to have a Wikipedia page.

If you stay on the 6 at Brooklyn bridge when they say last stop every one off. You can loop around to the up town station at Brooklyn bridge. You will pass an old station that’s no longer used. Old Wall Street station.

San Francisco also has a lot of buried ships (and it's a much newer city), a lot of them from the 19th century gold rush. SF also has tunnels where drunk men were taken onto ships to be impressed into service as sailors (as does Portland, Oregon). I was most intrigued by the tunnels under Chinatown and the abandoned highway. I wonder if that abandoned highway could be refurbished to be used as a storm shelter?

Would love to see some pictures of all those hidden tunnels

I agree that a consolidated underground map *could* be a security concern if it gets into the wrong hands, but the same could apply to just about any architectural floorpan/siteplan. It frustrates me that a lot of really groundbreaking subway projects have to be delayed for decades or cancelled entirely because there's "just too much stuff down there". That's why they haven't bothered expanding the PATH train from 33rd St to Grand Central Station.

Watch the RU-vid documentary "OUT THE SHADOWS". It will definitely answer some of your questions about these underground tunnels...

Your NY series is absolutely wonderful! Professionally researched and delivered.I cannot believe I get to see this quality material on RU-vid while our dear main stream media channels deliver bs 24/7 and it's not even good bs! Thank you for the work you put in, it's really great to get to see such well prepared material. Btw, I subscribed :)

I am very pleased that you are doing metric at least as overlays.

NYC is no match for my beautiful capital of Pyongyang

Pneumatic tube. Pronounced: New mat ic. Thanks for the video.

Wow, the Post tubes are damn cool. You can still see some of them in the 80s films, and you've seen them in the Simpsons as well. I've always wondered whether they actually existed or not. And I think the idea is really cool. And why not? So between large buildings, you could do that with parcels by sending parcels underground, so to speak, I say from one packing station to the next or from one post office to the next post office and so on and so forth. Or it could also be in Amsterdam, where there is no special garbage day, but where you simply dump the garbage on the sidewalk in such large containers. And you could do the same with packages. Do, then the post office would no longer have to pick up the parcels from the mailbox, but rather the parcels. Automatically transported to a parcel center or no idea what or maybe directly to the destination.

NYP Hospital has 4 floors of basement. The last sub-basement is like stepping into time, it's crazy. Brick walls, low ceiling, old knob & tube wiring...

A lot of infrastructure goes into keeping NYC a functioning city. I've been the 191st St station, the tunnel that leads up to it is creepy at night

Very interesting. I am staying in the woods.

this was your best & most informative video yet. question: has anyone thought of using Ground Penetrating Radar to map underground? if yes, you should have mentioned it. iam sure it'll be expensive, but with the tech we have now, we should al least have given it a go.

"Like, you know, stuff and, like, stuff."

7:16 - How can Freon explode, by pushing pressure in the tank up due to high temperature? A main advantage of the stuff was that it doesn't really burn.

We need an episode on the mysterious mirror room!

I have never been in Manhattan area, just been on the outer edge around the city. I own tractor an trailers and sometimes drive them but I really enjoyed your video. The mirror room has me wondering now! Need more on that.

I'm an engineer from Canada, this is not out of the ordinary. We have GIS technology (Think google maps but more information) that can record and organize all this data, even bring it into CAD drawings, and some areas of our country they made it a priority, while others are desperately trying to catch up. Currently we have Ontario One in Ontario, Canada, that is supposed to coordinate all the utilities and mark them up on site during design and construction and the contractor and their insurance is responsible for it, not the tax payer (usually). Accidents still happen are going to happen, utilities take on no responsibilities for their information provided, if you ask me more needs to be done, often you get a rare rough offset and a guess at the depth of the utility, sometimes completely wrong information is provided and there is really no reason for this other than do we make the utility pay for it or the tax payer pay for it. British Columbia has a great system in place for some of their areas, you can even look up old drawings of when construction was last done on that road. This information is public and in most cases free. It makes it easier than ever for small companies to get information and compete and startup to get the job done right at a competitive price, through public bidding. It's completely possible, but you gotta stand up to private interests in America, make them cover their overhead otherwise you make the tax payer pay for it or some small business.

Please stop using upspeak, it makes cheddar videos almost unwatchable...

Holy Crap... I knew there was a lot of stuff down there... but had no idea that it went that deep..... Amazing

RIP that cat

I think you meant pneumatic mail tubes...powered by pressurized air

6:53 looks like she is/was crying

Well done. The group of individuals whom came together to create this video, have done a good f'ing job and kept the flow of info moving right along nicely. I've never been to New York and the direction and perspective provided allowed me to somewhat visualize the area/landscape in relation to what's underneath. Good presentation, informative and succinct. Thank you, John DaSilva

What would be cool is to have a hint 3d map of everything underground, it would make things easier to understand the complexity, and would just be satisfying to look at

That's one of the most fascinating things I've seen. I often wondered where all that stuff is since I saw a photo of Times Square with utility poles covered with hundreds of wires and the streets clogged with foot traffic, horses and wagons.

"mnemonic" mail tubes???

I don’t think that’s how you pronounce “pneumatic”

AHHHH, THIS IS WHERE deblazio CAME FROM. THANKS NOW WE KNOW.

I remember watching this Old creepy animated MTV show that talked about Lost an abandoned Train stations around and under the River/city Very Creepy stuff

Philadelphia has the exact same story as to what is underground. In the eastern part of West Philadelphia, archeologists found the remnants of a large Lenape village about 4,000 years old.

The details of what is under NY is vastly interesting and holds the rapt interests of several urban explorers groups... some of which never return. I love cheddar; your channel is pretty cool too!!! ;)

4:25 Can I get a source for this built portion of LOMEX if this is even accessible to look at

Not only did the narrator do a fantastic job, she is very easy to understand for those of us that are a bit hearing impaired. Thanks for that.

does anyone know anything on that 1600's ship wreck that was found underground? interested in knowing more about it!

Hmm strange, there isn't any secret infrastructure under my woods

The mail thing actually blew my mind i had no clue especially how long ago it was made and worked? Wow im looking that up

This would be the best scary movie. Deep under ground a sand hog discovers the old highway and has to survive a ghost family that was stuck in the highway as he make his way up all on his own

This how they transporting 6ix9ine to court 😭😭

@3:09 The Lexington/63rd Street station is DEFINITELY more than a few feet underground! Not to mention, that station doesn't serve the 4/5/6 Line that I think you're referring to...

That is not how you pronounce pneumatic and freon is NOT explosive. These videos are just as misinformative as they are informative.

No. Had no idea. The China town tunnels seem interesting and should be watched, considering China has proved to be a major adversary.

When talking about the pressurized air tubes that carry mail she describes them, repeatedly, as "mnemonic" which is a memory technique. The proper word is pneumatic.

Wow, I would never imagine that this would be under New York City.

I love how she made sure everything was perfectly to scale Edit...just saw the disclaimer..

am Canadian, just WOW, didn't know everything went so deep, probably here as well.. ty

There is pond under the Empire State B. ESB was build on a pond.

2:02 and the bodies, don't forget the "bodies" ;)

2:42, why are mirrors usually in a room more than typical?

Great video, but it's pneumatic tubes, not mnemonic tubes. Department stores were still using systems like that when I was little, they were fascinating

Why does it look and sound like she just got done sobbing?

My Boy Master Splinter is living somewhere!

0:30 "eck cetera" lol

The Lex and 63 stop used in the caption to describe stops just “a few feet deep” is one of the deepest stops in the entire system (3rd deepest)

When i was in construction,, we did not dig anything until all the different utility companies came out and marked on the ground in paint what was below. If you did not have marked and you broke anything, your responsible. But there is still a lot not marked that not even the utility companies know about.

Times square dig raid, october 31st

I'm convinced the supernatural community lives in all these underground places. Don't dig too deep or you'll disturb and anger the fae and the vampires. They intentionally make sure there is no map for the hapless humans above...

"Ek-se-terah"?

2:54 -- "Heyyyy, Ralphie boy!!!"

Here in the Netherlands we have something called the "Kabeloverleg", translates to the "Cable Meeting". Its a municipally controlled meeting / organisation / protocol for all stakeholders that work in the ground and includes all telecom network operators, water network operators, internet, electricity, sewage and transportation. Everything thats in the ground is meticulously planned out and registered in central databases that work on scales of up to a few centimeters.

Do one for European cities.

Al capones tunnel went all the way to stony brook, the sound.

6:00 About 1000 feet down is the Ramapo fault. It begins as the Reading prong, in Pennsylvania. Then it goes to New Jersey and becomes the Ramapo fault. On East 100 Street where it dips down, that’s where it’s sunk in in the late 1890s. That fault continues on into Brooklyn, it did a lot of damage in Brooklyn in the 1890s.

Wow, that was really interesting! Fascinating stuff 🐨

The most popular gas (refrigerant) used to be Freon which is non-flammable but has a higher rating for contributing to global warming. Newer units (mostly post 2019) are made to use which is called Puron and it is also non-flammable

7:37 I did not know Mumbai has a special appearance

Sorry Had to turn it off 2 minutes into it. Since every sentence ends in a Question?

15yrs living here, now I feel a little scared 🤣🤣. 🤔🤷🏽‍♀️ what else is down there?

Let’s clarify comments at 7:19. “Freon” was manufactured by DuPont many years ago. There were several chlorofluorocarbon and hydrochlofluorocarbon refrigerants that were commonly used in refrigeration and air conditioning systems that have been replaced by greener alternatives. CFC and HCFC refrigerants are not explosive but when passed over open flame chemical decomposition occurs and results in deadly Phosgene gas. I hope my spelling is correct.

With so many tunnels underground, wouldn't the weight of one skyscraper, and so many of them being close together, cause subsidence? Wouldn't it have been dangerous to build on land where there were many empty spaces underground?🤔

Pneumonic means relating to the lungs, I think you meant pneumatic (meaning operated by gas or air).

Is there any information about the boat cause I couldn’t find anything online.

that's my bedroom when I travel to N.Y.C. And that is also where I play my underground rave music young lady. Don't show it off again plzzz. 2:44

This was clearly made by someone from NYC. The Croton Reservoir is not in Upstate NY; it’s in Westchester.

Fascinating stuff. For those schmucks building the third water tunnel, the job could be a lifetime's work...

I cannot wait to see videos of water tunnel 1 and 2!

History for valley girls.

It’s almost like the utilities want there to confusion. What else are they hiding in those tunnels?

Narrator: They have been building the water tunnel for 50 years. Me: Nothing like having job security.

Incredibly interesting, and well presented!

most effective "insolent" ??? Someone needs to go back to school and pay closer attention.

So I typed rescue children underground and this video came up. Hmmmm

3:52 15 feet down: "Uncovered the MASSIVE relatively whole boat." Now at 20 feet deep: ... Me: "Uh so a 5 foot boat? Nice!"