Gothic architecture is Catholic, Protestants expelled priests and nuns from Catholic Churches, looted Catholic Churches and took them for themselves. And since then they imitate some Catholic or Greek/Judaic architecture
There is a very good comment answer above that answers your question well, but I can also try to answer it.Well, the difference between Catholics and Protestants lies in the existence of tradition and sola scriptura. Catholics follow the tradition that Christ left with the apostles, Every existing priest and bishop comes from an apostolic succession that goes back to Peter, the first Pope of the Church. Protestants believe in sola scriptura, that is, they believe only in the Bible, everything in it is right, nothing can be contradicted, it is more than sacred, It's like a devotion to the word written there. Well, it's something very curious, because the Catholics were the ones who brought together all the existing books in the Bible. Luther withdrew 7 of them. Then.. It caused quite a mess!! Now, the Protestant church differs greatly from the Catholic church. They have no tradition, so everything they believe comes from the heart, has to do with sensation. This is why many profiteers form Protestant sects and deceive many people.. A good way to differentiate the Catholic from the Protestant in everyday life is that the Protestant does many things based on the Bible without sources, doing meditation among other things, And the Catholic prays the rosary, makes a novena, pays penance, among other things.The Protestant believes that when you die, you sleep until doomsday. Catholics believe that when you die, you are judged and can go to three places, heaven, hell or purgatory. The souls that go to purgatory are the ones that need to be purified, so they need to go through the purgation process, that's what indulgences were for too. If you do a good deed, you are paying the debt that sin leaves you. This is why Catholics also confess, so that they can be forgiven, The problem lies in the debt you incur when you sin. Let's say, you break your friend's vase, you ask for forgiveness and she forgives you, but you still need to pay for what you did, you know? Well, for the Protestant there is no such thing, you are not indebted to anyone because when Christ was resurrected, he cleansed all existing sin from our soul, So you just need to believe in Him to save yourself.