4/1/2005: The land can be targeted by land-destroying spells and the spell will resolve, but the land will simply not be destroyed.
9/25/2006: If Consecrate Land enters the battlefield attached to a land that's enchanted by other Auras, those Auras are put into their owners' graveyards.
9/25/2006: An indestructible permanent can't be destroyed, but it can still be sacrificed, exiled, put into a graveyard, and so on.