Minecraft wiki entry for Igloo, associated text: The igloo from the outside.
Inside.
Inside, facing the exit.
Inside an igloo's basement.
The trapdoor revealed in an igloo; get in by taking out carpet.
An igloo generated above a river.
The igloo basement intersecting a dungeon, missing one of the jail cells.
An igloo's basement passageway in a river.
An igloo that generated inside of a cave.
An igloo on a cliff.
A naturally generated igloo in a superflat desert world.
An igloo that generated in a tree, with a trapdoor but no basement.
Igloo basement.
An igloo structure which generated in a snowy plains village.
Igloo generated on frozen river.
Igloo generated inside a hill.
An igloo with part of its bottom cut out by a water lake.