Click on the region selector to see all the regions that are available to you in your account:
AWS regions available in your account
Remember that selecting a new region takes you to a completely isolated AWS environment, so any regional resources you had set up in the previous region will no longer be visible. If you ever find yourself in a panic because it looks like one of your resources, such as an RDS database or an EC2 instance, seems to have disappeared, it's probably because you are in the wrong region.
Finally, we have the Support link, which exposes several support resources.
Speaking of support, we should mention another best practice recommendation: all production accounts should have, at a minimum, Business support enabled. A support contract gives you rapid access to help when you need it. Don't skimp on this critical resource!