This expansive bridge in the Canadian wilderness was originally just built for friends.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This ancient theater was once the home of fierce gladiatorial battles.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

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

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

A diorama of the Civil War, fought by cats.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

Memorializing an American tragedy of massive proportions.

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

The "Seinfeld" diner.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Elevated freight railway turned wildly successful urban park.

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

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

This giant green head remembers one of America's jazz giants.