One of my favourite places to relax and be nostalgic is Cameron's World -
http://www.cameronsworld.net/
It's a homage to the early days of the internet, particularly the old geocities sites - and some of the surreal early memes at the dawn of the www era. I love the fact that they have even curated some of the classic early websites so if you click on some icons you go through.
The whole thing is an artful love letter to the early days. Even the music (which changes as you scroll) brings back memories.