If you have multiple teams created (and have access to multiple teams!), the team selector in the top right corner allows you to choose which team(s) will show. This can allow you to show only the teams that you wish to see, or show multiple areas if you need to.
Click on the team selector to use it, you can make the following actions:
Click on a team to view this as well as the current team
Click only next to a team to only show this team
Select all teams at the top of the list
Video walkthrough