This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

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.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

A trompe-l'oeil statue honoring the first guide dog in North America.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

This old-fashioned candy shop, ice cream parlor, and diner served as the setting for one of TV's most controversial series finales.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Elevated freight railway turned wildly successful urban park.

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

An ancient Greek monument and a Byzantine church coexist inside this cave.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

A Byzantine-era church hidden in a wooded area below the Acropolis.

These caves secretly held national treasures during World War II.

This building displays the scars of the “Dekemvriana,” a dark time in modern Greek history.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

Legend says this sacred tree was a gift from goddess Athena.

Where commuters walk through remnants of an ancient Greek necropolis.