An unusual round church in London with a Templar past.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

A fantastic castle rumored to be the birthplace of King Arthur.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Rebuilt remains of a temple to Roman god Mithras.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

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

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

A tongue-in-cheek arcade where the games are based on everyday life.

The largest greenhouse in the world is home to over one million types of plants.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

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