A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

The graveyard with the highest IQ in Britain.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

The design of this seemingly translucent two-story tower in northwest Cambridge was inspired by an optical illusion.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

A mineral spring that became all the rage in 17th-century England.

Fantastically decorated underground chambers built in the 1760s.

Man-made cave with enigmatic carvings, some say made by the Knights Templar themselves.

A monument to early air travel and an unhappy cat.

This operational mill has survived centuries of destruction and construction.

Some of the earliest leaders of the Moravian congregation are buried here.

The only statue of a royal mistress in all of London.

This ancient Egyptian obelisk still bears the wounds of World War I.

A forgotten underground railway once whooshed trams beneath London.

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.

The anatomical-pathological collection of a man who changed surgery.

Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

Behind one of the world's most impenetrable vaults is a massive collection of retail silver.

This is London's smallest listed building.

This inn of the court provides a fascinating window into London’s legal and architectural history.

An unusual round church in London with a Templar past.

The taxidermied remains of a once-great parrot.

Dictionary Johnson’s favorite feline.