Weirdest Albums Made by Psychedelic or Progressive Bands

The items in this list have been selected by the author of the list for you to vote and comment on.
The Top Ten
1 Meet the Residents - The Residents

Amazing album, I'd definitely recommend this to anyone who's a fan of Prog or Psych Rock. If you haven't heard this yet, I highly suggest that you go do so.

Psychedelic/Progressive? More of an experimental rock band.

2 Ummagumma - Pink Floyd
3 When Dream and Day Unite - Dream Theater
4 Sheik Yerbouti
5 The Piper at the Gates of Dawn - Pink Floyd
6 Undertow
7 Ænima - Tool
8 Rush - Rush
9 2112 - Rush
10 Emerson, Lake & Palmer - Emerson Lake & Palmer