The pockmarks across the building's facade are remnants of the Blitz.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

Discovered on a shipwreck after more than 400 years, this Renaissance ratter tells a very waggly tale.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

A tribute to all the green-thumbed workers who tend London’s public parks and gardens.

An agreement meant to honor the Duke of Buckingham led to this unusually-named passageway near Charing Cross.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

This sculpture encompasses the emotion of rail travel.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

A celebrated bandstand at the center of what was once the worst slum in London.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

A historic arboretum and non-conformist, non-denominational park cemetery.

From the Difference Engine to the Cray-1, all under one roof.

At night, this glittering musical tunnel draws skaters and photographers.

A shining, cold, black organ lies in San Francisco's financial district.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

A modern frieze of ancient Grecian mythological figures playing a national pastime.

The original place where water met land in the City by the Bay is outlined in brass.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.