Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

A sweet symbol marks the place where torturous executions were once carried out.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

Protecting the dead from opportunistic body snatchers.

The most loyal of little dogs, or a Victorian era publicity stunt?

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

This ancient bridge made of stone slabs is said to be reserved for the devil to sunbathe.

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

A student driver's nightmare.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

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

This luxury shopping lane has been protected by its own tiny police force for over a century.

The final resting place of a German diplomat's beloved companion.

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

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

Charles Babbage's proto-computer, painstakingly brought to life.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

This mysterious and unique painting is filled with symbolism.

A tiny replica of the iconic London landmark hides on the side of the steel structure.