A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

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.

Also known as "Robin Hood's tree," this tree became a famed location along Hadrian's Wall before it was cut down in an act of vandalism.

This temple was constructed entirely by Roman soldiers.

A monument with a strange legend involving a horse's tongue.

Hundreds of years ago, this lion-shaped door knocker could help a person accused of a crime find temporary safe haven in Durham Cathedral.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

This Underground station has been a popular filming location for decades, even before it closed.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

The taxidermied remains of a once-great parrot.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

A building that survived WWII, possibly on the virtue of its name alone.

These haunting ruins belong to an ancient village that once had one hell of a view.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Spain's largest bullring offers a unique glimpse at architecture and history.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

The world's largest wooden structure.