This piece of a Renaissance-era Spanish castle remained lost for decades.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

London's smallest police station is barely the size of a phone booth.

Scattered throughout London are ancient remnants of the city's former bounding wall.

One part local history, 99 parts gruesome haunted house.

An unusual round church in London with a Templar past.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The remains of the wrecked steam trawler can be found on the beach at low tide.

An unusual monument to a 19th-century circus star.

The ruins of an unfinished explosives factory can be found while taking a gentle stroll through a Manx glen.

Mysterious chains and iron stakes adorn this strange grave, with no explanation.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

World's largest working waterwheel has been around for over 150 years.

Medicinal spa created with the discharge from a geothermal energy plant.