Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

A cheeky architectural easter egg.

A New Hampshire grave with a grudge.

This stretch of Canadian road was named after a nickname that stuck so hard the city had to keep it.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

An homage to everyone's favorite prehistoric cartoon family.

A reproduction of earth's many biomes.

A self-built castle made by a mysterious man.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

These 1,500-year-old remains were found in a mysterious Anglo-Saxon mass grave.

These azure waters were thought to lead to the Mayan Underworld.

What once sat in the world’s spotlight is today a largely disused ghost complex.