The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

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

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Notorious artist squat renovated into legal studios.

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

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

A historic landmark and museum filled with curious objects representing the history of Key West.

Dedicated to the victims of one of the deadliest hurricanes to strike the United States in recorded history.

These simple structures are living monuments to the fishermen who built this community over a century ago.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

These mysterious ruins are hidden amid this sleepy coastal city.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

Near the ruins of a Civil War coastal fortress lies the only known African refugee cemetery in the United States.

Public works and national defense project meant to carve a canal all the way across the state of Florida.

The strip club's VIP lounge is actually a rare repurposed Futuro House.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.