The pretty iron lamp is a reminder of the architecture underneath London's streets.

This five-star hotel was originally a swanky parking garage.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

A 1950s beatnik coffee house, turned 60s counterculture hotspot, turned modern music venue.

This may be the last of London's wooden pavements, which were once a common sight in the city.

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

These marks in Myddelton Passage aren't your run-of-the-mill vandalism, and they weren't made by your typical vandal.

A domino effect created with Britain’s iconic telephone boxes.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

An ornate and disused early 20th-century building has been given new life as a fully operational structure, complete with offices, oyster bar, and a furniture retailer.

A secluded green oasis amidst the towering skyscrapers, bears an unusual moniker that reflects one of the city's oldest guilds.

These Victorian era devil sculptures were designed to spite a local vicar.

This Art Deco house is home to the world's largest collection of Dora Gordine's paintings, drawings, and sculptures.

This inn of the court provides a fascinating window into London’s legal and architectural history.

This magnificent, quirky home sits atop a literal gold mine in the middle of the Nevada desert.

Three bridges straddle a stream, one stacked upon the other.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

A 140-year-old castle with underground caves hidden in San Francisco.