ELI5: Explain Like I'm 5

Atrium (architecture)

An atrium is a special room in a building that is usually located near the entrance. It is a big, open space that goes all the way up to the roof of the building. This means it is very tall and has a lot of light coming in from above.

Imagine you are walking into a huge room that feels like a giant greenhouse. The walls and ceiling are made of glass, and you can see everything outside, but you are still inside. This is what an atrium feels like.

People like atriums because they are very beautiful and can make you feel like you are outside when you are really inside. Some people even put plants or trees in the atrium to make it look like a real garden.

Atriums are also useful because they can help with ventilation. This means they can help air circulate through the building, which can make it feel cooler and fresher. They are also great for big events or gatherings because there is plenty of space for everyone to be together in one place.
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