Europe’s oldest natural human mummy.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

These ancient sacred grounds granted amnesty to those who managed to reach them.

A controversial memorial at the place where Captain Cook met his violent end.

Yo, Adrian!

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

This pun was simply waiting to come to life, and one defense contractor made it so.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

This former monument to an invented Iraqi victory was turned into a military camp during the subsequent invasion.

The snowbirds here are circus sideshow performers.

Like Mardi Gras, only everyone's a pirate.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.