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

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

One of only two commuter aerial tramways in the United States.

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 crumbling hospital from the 1850s on Roosevelt Island.

Once home to Komodo dragons, this island dreamscape has a rare combination of white, pink, and black sand beaches.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This bridge was constructed from the rubble of the infamous Bastille.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

The celebrated eyesore created by starry-eyed sweethearts.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

The pedestrian traffic signals in Brazil's teeming metropolis light up with clues to nearby landmarks.

Striking ruins of a mansion that stood center stage in one of modern Brazil's most puzzling crimes.

A huge boat-shaped hotel with a blood red pool and other oddities.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

The bookstore with bookshelves built into unlikely places.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

A phallic shrine to a princess goddess in Krabi, Thailand.

This gem-encrusted temple is said to contain some of the Buddha's hair which can make the deaf hear and the blind see.

Hundreds of Buddhas in a re-discovered Indonesian temple.