A mixture of strange symbols, ciphers, words and cryptograms carved in 1876 remain unsolved to this day.

A historic town sits upon the site of a long-lost 18th-century trading community.

Destructive children, start your engines.

The first partially complete dinosaur skeleton was discovered here, forever changing the world's view of the ruling reptiles.

Mysterious rocks that ring musically when struck.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

The abandoned coal loading dock is a canvas for unsanctioned art.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

This museum inside Amsterdam's largest cemetery explores how people deal with death.