Odd outsider art installations surround a Gold Rush-era ghost town.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

These curious caverns have been home to mushrooms, gangsters, and disco.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

When flour explodes, it's not a pretty sight.

17,400 lbs., 12 feet in diameter, and 29 years in the making.