Imagine a building that looks like it came out of a fancy cartoon. It's usually made of shiny, expensive materials like metal, glass, and marble. It has lots of straight lines and bold shapes that are very different from normal buildings that are usually more rounded.
This type of building is called Art Deco architecture. It became popular in the 1920s and 1930s, and it was used for all kinds of buildings, from skyscrapers to movie theaters to apartment buildings.
Art Deco buildings look super fancy because they use lots of decorations, like intricate patterns, bright colors, and artwork. They also have a specific design that makes them look very modern. For example, some Art Deco buildings have round corners and use zigzag patterns to look like they're moving.
So if you see a building that looks like it's from a fancy cartoon with lots of decorations and bold shapes, it might be Art Deco architecture.