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

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

A little piece of Oxford's overlooked industrial heritage.

This medieval manor house was equipped with secret compartments for hiding priests.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

A public urinal so pretty, it was declared a national monument.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

A six-ton wedding present for the King of the Scots.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

This popular square's history as the former site of a church is right beneath your feet.

One of the shortest streets in York has an especially odd name.

Follow the original medieval paths that wind through this intriguing section of the city.

This grassy, tree-lined hill shares a name with the much-loved novel that it inspired.

These public toilets were used as a dead drop by pro-Soviet spies to trade British military secrets during the Cold War.

A rare example of a building constructed specifically for catching eels.

One of the largest medieval barns in England and architecturally one of the finest.

An alchemical monument that represents "Earth, Air, Fire, and Water."