Venice's "Island of the Mad."

This former coal gasification plant found a curious second life as a popular public park.

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

A 300-ship graveyard, with a few still visible at low tide.

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

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

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

This cemetery features modernist statues as strange as its name.

Stalactites and stalagmites in a beautifully lit cave.

Explore 10 acres of environmental sculptures.

A massive underwater sinkhole made famous by Jacques Cousteau.

Pompeii's less famous neighbor is still revealing her secrets.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

A house filled to the brim with oddities and curiosities.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This community on a small Venetian island has taken to painting their houses in bright neon hues.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

San Francisco's newly reopened hands-on science museum.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A beautiful geyser under environmental threat.

A hands-on traveling collection of the innovative devices of yesteryear.