A la Ronde is a fancy house with lots of rooms that people used to live in a long, long time ago. It was built almost 250 years ago by two sisters who loved to travel and collect things from all over the world. They wanted a house that was special and different, so they designed a round house with 16 sides, and lots of rooms inside.
Instead of just having regular walls like most houses, this house has walls that are angled and slanted, which makes it extra special. They even made a staircase that spirals from the ground floor all the way up to the top of the house. It's like a big circle!
Nowadays, people can visit A la Ronde and see all the cool rooms and things the sisters collected. They can learn how the house was built and how people used to live a long time ago. It's like taking a trip back in time and seeing how things were different back then.