Exedra

An exedra is like a special kind of seat that you might see in a fancy place like a museum or a big park. It's usually made out of stone or marble, and it's set up against a wall or a column, so that it kind of looks like a half-circle.

The cool thing about an exedra is that it's designed to help you relax and take a break from walking around. You can sit in the middle of the curved area and lean back against the wall or column, and it's like you're sitting in a little private space, even though you're still outside.

Sometimes people also use an exedra as a way to show off something special, like a sculpture or a fountain. They might put that thing right in the middle of the rounded part so that it looks extra cool.

So basically, an exedra is a comfy stone seat that you can sit in when you're tired, and it also looks really neat.