The world-record holder for the longest bridge stretching continuously over water.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The metal spire on the roof of this tower was intended as an airship docking station, but it was never actually used.

A miniature city built by a single hunchbacked monk.

A seven-ton black granite monument dedicated to the memory of those who died and those who lived through the 1977 crash of the popular Southern rock band.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

A dramatically eroding canyon thousands of miles from the desert.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

An eerie and beautiful group of columns mark the site of a grand mansion lost to time and fire.