Propeller Island City Lodge, Berlin
This Berlin hotel takes quirkiness to a new level. Each of its 30-plus rooms has a different theme, emphasis on "different." One room has a king bed that has been divided into two singles by a giant guillotine. Another has a bathtub made to resemble an oversized plastic bag. Others are furnished and laid out like prison cells or mortuaries (complete with coffin beds).
One more detail sets the lodge apart: If you stay the night, leave your camera in its bag. The hotel notes that "The City Lodge is a work of art and it is the artist's intellectual property to have all the copyright for everything included." This means that "the listed room rates do not include the rights to make photos, videos etc." without explicit permission.