Added in VRChat 2018.1.3!

This was mentioned as an upcoming feature in Dev Update #3. Marking as planned. https://www.youtube.com/watch?v=ugRfCGFH708

Heck, even just the ability to add a ‘Favorites’ list would be awesome.

This can be done any sort of way, just would be nice to have the option to visit the last place you had been to. Especially useful if theirs a nice avatar world but you forget the name of the place so you can just check the "past worlds" and find it there.

This would be very useful!

If it saves the instance too, than I'm happy

Public "Worlds you've visited" sorted by last visit date.