The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

Catacombs turned marketplace.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

CDMX's home for the world's culinary delights.

Frida Kahlo's childhood home, now a museum of her life and works.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

Just below the surface, shrimp are producing temperatures hotter than the sun.

This kitsch eatery is chock-a-block with bric-a-brac.

The remains of what was, not so long ago, the world's largest city.

Once a dumping spot, now a park with a kayak launch.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

Nature and beauty amidst pollution and industrial wreckage.

A modern addition to the Greenpoint skyline.

A graffiti Mecca welcoming artists from around the world.

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

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

The home of aviation trailblazers, in a remote corner of the big city.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

I-95's Tijuana-style celebration of kitsch at the Carolina border.