A mysterious castle built as a monument to lost love.

Medicinal spa created with the discharge from a geothermal energy plant.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

'Cause the fence start shaking, the earth was quaking.

This elaborate temple was built around one of the Buddha's teeth.

This peaceful, round shrine in the middle of the Sri Lankan jungle acts as a beacon of peace.