The sign at the garden gate reads: "These Plants Can Kill."

In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

After a night ravaged by bedbugs, it's said King John ordered the creation of this weathervane.

A medieval replica of King Arthur's legendary table, the Round Table hanging in Winchester Castle was decorated by Henry VIII.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

This hidden natural fountain issues forth a steady supply of supposedly healing water that tastes like rotten eggs.

Hidden in plain sight, this creepy sculpture watches from above.

A dark Victorian well house now plays host to mystical waters and pagan shrines.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

This historic Benedictine monastery brews a booze so toxic that it has often been blamed almost singularly for Scottish hooliganism.

Europe's largest prehistoric mound – burial site of a legendary king?

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

A petite castle folly in the English countryside.

Eyam took steps to quarantine themselves and keep the plague from spreading.

One of Europe's oldest libraries.

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

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Fascinating town where normal life interfaces with the occult.

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

The longest hedge maze in the world.

Famously misunderstood wonder of the ancient world