This airport currywurst stand is made out of retro airplane parts.

The construction of this bridge dates back to the 15th century.

High in the Sacramento Mountains, a facility dedicated to studying the sun.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

The longest sculpture trail in the United Kingdom.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Above an abandoned Underground station, this charming bookstore is home to strange antiquities and literary works.

A commemorative plaque at the door pays tribute to an "American Patriot" known for his betrayal.

A plaque marks the underground site of one of London's "lost rivers."

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

Tucked away behind the mansions of Mayfair, this picturesque garden is a hidden London treasure with a spooky past.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

This striking statue brings a scene from the African savannah into central London.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

A legend says that if this elaborately decorated glass breaks, the good fortune of its owner's household will also disappear.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

A plaque pays tribute to the artist's longtime London home.

According to legend, this tomb holds the secrets to time travel.