Inside this church is an obscure piece of art carved by the famous Alice Liddell.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A network of concealed passageways lies within a busy London Underground station.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

This early version of the guillotine was used to execute the man responsible for its construction.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.

A vintage penny arcade hidden in the back of a fun fair-themed bar.

One of Oxford's greatest treasures likely belonged to the legendary King Alfred the Great.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

This hidden 13th-century tavern room has a few Shakespearean connections.

Used as an example in one of the first dictionary entries for "museum" in 1706.

Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.

The world's largest moose statue towers above the highway between Oslo and Trondheim.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

An old tram depot transformed into a vintage car paradise.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

One of the world's heaviest musical instruments towers within a popular urban park.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A monument to the man who almost killed Hitler.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.