In Tucson a giant metal snake helps pedestrians cross a busy highway.

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

A UFO scrapyard in the California desert.

A remarkable medieval structure born from a 14th-century disaster.

This is what trains will look like after the zombie apocalypse.

A mummified Spanish monk found in the walls of an Ecuadorian church, alongside a mummified mouse.

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Thousands of flowers create enchanting pink tunnels over the city streets.

This research hub in the Amazon Rainforest is perched amid one of the world's most biologically diverse landscapes.

This small uninhabited island offers Galapagos-like biodiversity.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

Take a monster truck tour around an ostrich farm in the middle of the desert.

The grounds of this Jacobean estate contain one of the oldest mulberry trees in England.

The small bright red pillar survived the 1996 Manchester bombing virtually unscathed.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

This nature center has one of the largest collections of native raptors in the Pacific Northwest.

This long-distance walking route follows the Prime Meridian line as it passes through England.

The rogue roots are gradually consuming some of the historic marble grave markers.

The illuminating collection of L.A. street lights is run by the city and only opens one day per month.

The mighty room where the poet spent most of her life is available to rent for an hour or two.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

This painted blacktop brings the classic arcade game to life.