This 20th-century replica of a 13th-century castle has itself fallen into ruin.

At night, the enormous sculpture looks like a UFO hovering above the English hills.

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

The house in the middle of the motorway.

The tallest freestanding structure in the United Kingdom.

A unique sculpture park that features the works of several famed artists.

Stonehenge has nothing on Castlerigg’s views.

The much-beloved mascot of a local museum.

These planks were originally installed to hold the dead.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

The tower was originally used as a chimney for the waste incinerator of St. John's Precinct and Market.

This whimsical public art installation is a unique homage to Liverpool's industrial heritage.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

Cat art as far as the eye can see.

The history and future of cannabis.

An enormous and lavish Gothic church in Czechia.

A church of bones, decorated with 40,000 human skeletons.

A series of playful yellow penguins share a serious message about the environment.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.