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

A stately palace has been converted into the world's largest cannabis museum.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Seven ceramic sculptures are scattered around this California college campus.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

A notorious punk house turned co-op.

Salute the leader of the proletariat.

Once called Winthrop Park in 1889, home to a decidedly sexy tribute to the Monitor vs. Merrimac battle.

A 120-year oil leak slowly unleashes more gallons of oil than the Exxon/Mobil disaster.

A modern addition to the Greenpoint skyline.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

This shop specializes in oddities and Victorian-inspired wonders.

This massive redwood tree has a hole in the base big enough to drive through.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

A man-made island in scenic San Francisco Bay.

Golden Gate Park's historic collection of plants.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

Breathtaking and huge 430 year old maps of Italy.

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

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.