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

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

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

This naturally-sourced hot spring is now home to a clothing-optional resort.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

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

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

A beautiful geyser under environmental threat.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

Home to items never before seen by the public.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The United States Capitol's former columns still stand.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

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

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.