This massive Maya archaeological site is home to the tallest man-made structure in Belize.

The ruins of an important pilgrimage destination for worshippers of a Maya fertility goddess.

This Florida arena, once host to "the fastest game in the world," has sat empty for 25 years.

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

Known as the most resilient water tower in the region.

This stretch of highway is said to be haunted by ghosts of settlers whose graves were paved over.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

Here’s how Robert the Doll earned his reputation as the most haunted doll in the world.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

One of the most accessible undersea plane wrecks in the world.

They squeal, they nosh, they look like predators.

In paradise, feral pigs have claimed an island all to themselves.

A daily replay of the experiment that proved the rotation of the Earth.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Go inside to really appreciate this 500-year-old technological masterpiece.

Look closely and you’ll notice that the color changes a third of the way up the tower.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Where the U.S. government kept its actual treasure, before Fort Knox.

One of the largest underground systems runs under Canada's largest urban center.

A museum dedicated to the history and exploration of both popular music and science fiction.

These pretty kitties killed and ate as many as 135 railway workers.