If you played video games I would tell you to play The Elder Scrolls: Oblivion, Shivering Isles expansion. So that you could meet Sheogorath (shay-o-gor-ath,) the Prince of Madness, he's actually a diety. Once he was the Prince of Order, but he was so powerful that some of the other gods were afraid of him, so they got together and cursed him. He only regains his true form at the end of every era, which causes a type of internal civil war.

Anyway, despite being completely mad, he's also incredibly wise. He sees things in ways that others don't, and he embraces those who are mentally ill as his children. He takes them into his realm in the afterworld (which is known as Oblivion,) and his land is called the Shivering Isles. His capitol city is New Sheoth, which sits right on the boarder of the two realms, Mania and Dementia. Mania is a bright, vibrant place and Dementia is dark, gloomy, and dead.

http://www.uesp.net/wiki/File:SI-map-Regions.jpg