The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

A building so large that it has its own weather.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

This tiny island is home to the world's largest colony of Northern gannets.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

This early version of the guillotine was used to execute the man responsible for its construction.

A six-ton wedding present for the King of the Scots.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

Protecting the dead from opportunistic body snatchers.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

This museum offers an actual time machine back through Colorado's past.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

Travel through the wholesome amusements of yesteryear at this charming miniature village.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

A prehistoric rock shelter that's literally in someone's backyard.