The Art Deco artwork depicts gilded carriers of deadly illnesses.

The commemorative stone column conceals a secret laboratory.

The Great Fire of London and the regulation of one-way streets both started in this alley.

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

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

Catacombs turned marketplace.

Giant, friendly pelicans in Central London, the most unlikely of places.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

This World War II airfield is the last place the bandleader performed before he disappeared.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

A monument to one of the most famous modernist Chinese poems and its poet.

A double cantilever system bridge that was designed to prevent flood damage.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

A close look reveals that the Scottish monument is just slightly off-kilter.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This rare surviving broch is one of Scotland's most impressive Bronze Age structures.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

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

A collection of short standing stones covers this hillside.

The world's shortest street was created by an awkwardly placed hotel.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.