Regency-era excess on the English Coast.

The largest stone moai on Rapa Nui.

The world's most remote airport.

This was once the center of the Birdman cult, and is now a World Heritage Site.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

One of Chile's most active volcanoes is riddled with beautiful caves.

A record-breaking pool that uses computers to turn ocean water into cleaner, private swimming water.

Built for the 1962 World Cup, this fully functioning botanical clock is still ticking.

Pivotal home of Nobel Prize winner Pablo Neruda.

A museum founded to reflect on and remember the human rights abuses under Chilean dictator Augusto Pinochet.

Walk through Czech history in Prague's largest graveyard.

An ancient octagonal weather station named for the eight Greek gods of wind.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A series of playful yellow penguins share a serious message about the environment.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Macabre astrological automaton clock dating to the late 1400s.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."