I once went to a party in college where the hosts had hung their furniture upside-down from the ceiling. But this takes the cake:

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The house, in the town of Trassenheide on Germany's Baltic Sea island of Usedom, is appropriately named "The World Stands on its Head." It opens today as a tourist attraction.

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Here's what it looks like inside:

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Sean Gallup/Getty Images

Sean Gallup/Getty Images

Sean Gallup/Getty Images

The only thing that's right-side up? The stairs.