The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Washington's iconic carousel has a nice piece of Civil Rights history.

This lovely pocket park is one of the most under appreciated in D.C.

A celebrity from the late Cretaceous period.

A much-maligned monument to teetotalism.

Home to items never before seen by the public.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This cemetery features modernist statues as strange as its name.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

Avant garde house of Pierre Cardin on the Cote d’Azur.

This massive blockhead sculpture hides an entire library.

Nearly every wall in this French villa has been "tattooed" by artist Jean Cocteau and other famous painters.

The celebrated eyesore created by starry-eyed sweethearts.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.