The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

The narrowest house in America is seven feet of pure spite.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

Once the largest trading firm of enslaved people in the U.S., this building is now a museum that preserves Alexandria's dark past.

This pharmacist and his patient greet visitors to the National Community Pharmacists Association.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

The romance of early commercial flight still fills this Art Deco destination.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

Also known as the "Red Taj Mahal."

This ancient Hindu temple is covered in thousands of colorful statues and has a long mythological history.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

This whimsical fountain pays tribute to Toronto's four-legged friends.

Known as "Toronto's Flatiron."

This historic Victorian hotel has a scandalous history of affairs and murder.

The clock that sets them all.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The largest self-built castle in the U.S., six decades in the making.