Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

An architectural oddity hides in plain sight on this iconic London bridge.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A memorial for public executions that dates back to the 14th century.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

The broken skateboards that became a poignant memorial to a murdered skater.

This ancient Egyptian obelisk still bears the wounds of World War I.

London's smallest police station is barely the size of a phone booth.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

Two tombstones associated with the much-beloved children's story.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

A living antique aviation museum in the historic town of Red Hook, New York.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A bar, burger joint, and arcade housed in a late 19th-century church building.

An interesting look into 18th-century American history.