Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

This 16th-century house tells the city's history through old artifacts and quirky tales.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

A 18th century graveyard and its astonishing cortege of macabre iconography.

An ancient neolithic tomb that only sees the sun twice a year.

A museum that chronicles the interesting and often dark history of the London docklands, once one of the major trading ports of the world.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

This haunting sculpture was created as a statement on the mechanized warfare of the First World War.

The beloved beast's taxidermy remains sit in the Natural History Museum's cafe.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

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

This Underground station has been a popular filming location for decades, even before it closed.

The medieval woodcut-style artwork chronicles life in medieval London.

This coffee shop lies hidden beneath a historic church.

The pockmarks across the building's facade are remnants of the Blitz.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

A mysterious shape catches the eye in this 16th-century painting.

A collection of machines designed to break things for science.

Its collection includes a broad array of social, geographic, graphic design, and political history.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

The commemorative stone column conceals a secret laboratory.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

An architectural oddity hides in plain sight on this iconic London bridge.