Let's you listen to radio around the world.
Let you check out the view from people's windows from around the world.
Tons of free-to-use images of damn near everything.
Let's you "send emails to the future you". It helps put into perspective how much has changed over the course of a year.
Boil the frog
An awesome site where you put add two music artists you like, and it creates a playlist connecting them.
1. radio.garden 2. window-swap.com 3. unsplash.com 4. futureme.org 5. Boil the frog
Now, Go Quiet and Start Building Yourself.