A mysteriously dark cemetery monument fuels stories and legends galore.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

The narrowest street in Paris.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

The largest and most well-preserved petroglyph site in the Verde Valley.

An innovative local park built from an abandoned sewage treatment plant.

Neal Cassady may still have an open tab at one of Denver’s oldest watering holes.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

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

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

16,500-acre ranch filled with American heritage, geological wonders, and a giant pile of tires is the crown jewel of an intriguing tug-of-war.

Even in death, he's still your huckleberry.

The highest bridge in America was built for an almost unnervingly small amount of money.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.