- Futuro - UFO House, Pensacola Beach, Florida: In the 1960s, Finnish architect Matti Suuronen designed a bunch of these fiberglass flying saucer houses in Florida.
- USA's Skinniest House, Long Beach, California: Cited by the Guinness Book of World Records as America's narrowest house, measuring 10 feet wide by 50 feet long.
- Confusion Hill Gravity House, Piercy, California: This tilted house makes people feel like they're being tipped over when they step inside.
- Nitt Witt Ridge, Cambria, California: Harold Beal devoted most of his life to building this home out of cast-offs and garbage. The house is now recognized by the state as a historic landmark.
- Pickle Barrel House, Grand Marais, Michigan: This two-story house is 16 feet tall and was built as a summer cottage for William Donahey, creator of The Teenie Weenies, a Chicago Tribune comic strip.
For many more offbeat attractions, check out RoadsideAmerica.com — a great resource for novelty tourist destinations. Photos: Gregory Moine used under Creative Commons license (1), DRosenbach used under GNU Free Documentation License via Wikimedia Commons, Foxtongue used under Creative Commons license (3), Janet Planet used under Creative Commons license via Wikimedia Commons (4), Kristina 5 used under Creative Commons license (5)