Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A network of concealed passageways lies within a busy London Underground station.

Hear the quietest sound from across the dome.

A hands-off space for graffiti artists to hone and display their skills.

Banksy gives themself artistic license with this piece of London street art.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

A pocket of jungle amidst urban expansion in Panama.

Sloth rehabilitation center in the jungle of Costa Rica.

The colonial city's social history is reflected in its fanciful door knockers.

This quirky curiosity shop takes its cues from the world's bazaars.

A large replica of a monumental Roman inscription is located on the side of this museum.

This large, circular tomb is the final resting place of the first emperor of Rome.

The first American department store, and home to the largest operating musical instrument in the world.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

Two flush headstones mark the only known graves to be embedded in an airport runway.

Mexico's first public cable car soars over the congested streets outside Mexico City.

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.