This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Museum celebrating the history of computers, especially their role in codebreaking.

The location of this historic castle was inspired by a donkey.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

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

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

The plunge pool is a surviving relic of a rowdy royal residence.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

Decrepit Victorian public lift is a white-knuckle ride.

A six-ton wedding present for the King of the Scots.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

Legend says this rock was once a chopping block for public executions.

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

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

A midnight snack that lights up the night.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

One of Europe's oldest libraries.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Stonehenge has nothing on Castlerigg’s views.