Besides Fluther, what are some unique websites you visit that you don't think are commonly known?

We all visit a lot of websites, I’m sure, but what I’m looking for here are unusual sites that you think are special for some reason that others might never have heard of. Little hidden treasures of the Internet that you’d like to share. Tell me about them and why you like them.

Here are two of my favorites:

http://www.ferryhalim.com/orisinal/
(Beautifully rendered, charming and gentle little games)

http://www.santaclauslive.com/main.php?link=santa_claus_live&kieli=eng&pid=3
(Live cam view of Santa Claus’ office at Rovaniemi, Finnish Lapland – it’s just so pretty and it’s fun to watch Santa hanging out in his office during the holidays and to look at the outdoor view any time.)