In Wonder, the hierarchy of space is as follows:
Room ➡️ Areas ➡️ Circle
A Wonder Room is the virtual space you opened. It belongs to you and can hold up to 1500 people.
A Room can have 15 Areas that serve as the spaces where people can get together inside a Room. There is no limit to how many people or Circles can be in an area.
A Circle is a conversation (between two or more people) that takes place inside an Area. Circles can hold up to 15 people; when the Circle is full, anyone who wants to join has to wait until someone leaves so that they can get in.
Just like in offline events, most Circles stay much smaller than 15 users anyway, since guests appreciate more intimate conversations.
Tip: As a host, you can also address the whole room: Broadcast mode pauses all conversations and lets you speak to all the guests at once.