According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

After a catastrophic forest fire, a Greek artist transformed scorched tree trunks outside an old sanatorium into this haunting sculpture garden.

A closer look at this somewhat faded hotel by the Corinth Canal reveals the architectural undertones of a genius.

This legendary city has been a tourist attraction for centuries.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

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

The hallucinogenic center of the ancient world.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

In this roadside "community for the small," abandoned toys gain new lives.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

A museum dedicated to antique toys, collectibles, and nostalgia.

Celebrating an art form with a collection of puppets from all over the world.

The graves of a Connecticut family thought to have been plagued by a vampire.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

Chefs from Tibet's Kham region offer steaming meat pies and noodle soups in this nook behind a jewelry store.

Head past the aisles of tropical fruit and imported candy at this bodega to discover a hidden, weekends-only taco stand.

The preserved house of a jazz legend still echoes with his music.

Some of New York's best tacos can be found in the back of an unassuming bodega in Queens.

A New York warehouse filled with an enormous amount of goods saved from the landfills and donated for creative use.

Nondescript elevator doors open to reveal a stunning, surreal world.

An exhibition space dedicated to American outsider art created between the 18th and 21st centuries.

The world's largest collection of materials relating to lesbian history is housed in a Brooklyn townhouse.