A scattered trail of street art adds a pop of color to the city's stark structures.

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

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

Scotland's first free lending library, which protects literacy through inheritance.

A grave marker depicting a body snatching tableau on a 19th-century tombstone.

This brilliant display of whirling fireballs celebrates Hogmanay.

This Scottish burial tomb once held hundreds of ancient eagle bones.

Home to the ancient Roman temple of a lesser-known Celtic god that inspired J. R. R. Tolkien and H. P. Lovecraft.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.

A majestic mansion designed in Mughalai style, complete with a turquoise onion dome.

The Liverpool street made famous by the Beatles is real.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

17th century puritan church with connections to the Salem Witch Trials.

Prehistoric sandstone menhir with Early Bronze Age cup and ring markings, also known as Robin Hood's Stone.