Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

The ground on which Shakespeare’s initial playhouse once stood.

An ancient healing font dedicated to an 11th-century matriarch was moved to make way for progress.

Check the time in 145 countries at once with this East German relic.

Before construction of the famous Tintagel Castle, this site in Cornwall was likely a prosperous Dark Age trading port.

Legendary DIY skatepark where Portland’s best skaters and curious onlookers gather daily.

An unlikely link between a quiet English town and Sydney’s skyline.

Spitfire airplanes with butterfly wings hover over Prague’s skyline.

An extraordinary collection of artifacts spanning 500 years of medical history.

Remains of a keep that was built shortly after the Norman conquest of England.

Though this bridge was originally built in the 12th century, only one of its 10 arches dates back that far.

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 library dates back to the late 17th century and was one of the first public lending libraries in England.

A forgotten underground railway once whooshed trams beneath London.

A former royal garden with lush surroundings in the heart of the city.

England's “third-oldest college” has not graduated a single student in over 400 years.

This grubby wall is said to be one of the Earth's esoteric energy centers.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

A Baroque mansion with ties to legendary magicians and alchemists.

The largest and best-preserved rotunda in Prague.

According to local legend, the devil shattered this column after losing a bet.

The bronze creation commemorates the life and work of a beloved actor.