REUTERS/Ilya NaymushinA man passes a house built upside-down in Russia's Siberian city of Krasnoyarsk, December 14, 2014. The house was constructed as an attraction for local residents and tourists."Home" can mean a wide array of things. Far more than four walls and a roof, home is a sanctuary and a shelter. No two are the same.
And some are more unique than others.
From domes to caves, treehouses to igloos, people across the globe live in unconventional dwellings.
Here are some of the strangest.