A high-end clothing boutique with a curious basement art installation.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

A hunk of prehistoric lava rests amid the Gothic architecture of a campus quad.

A chaotic collection of coin-operated slot machines designed to delight and disturb in equal measure.

Historical etchings such as “Miserable, wild, distracted 1350" and “The Archdeacon is an ass.”

This Norman castle has been the scene of assassination plots, religious persecution, and Nazi conspiracies throughout its long history.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

An engraved stone in a village church claims to be the grave of a minuscule folk legend.

Six neolithic sandstone boulders remaining from a dolmen.

One English town's celebratory landmark spurred more trouble than anticipated.

This English medieval castle is where King John died of dysentery.

This quaint mortuary chapel hides a stunning Celtic Revival and Art Nouveau interior.

The near loss of the stately fireplaces at this medieval castle spawned some of Britain's most crucial historic preservation laws.

Home of one of history's most famous cartoonists just as he left it.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

Every May, townspeople welcome summer with a bizarre pagan parade led by a man wrapped in garlands.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

The metal frame is all that's left of a wicker sculpture which once towered over the M5 motorway.

Legend has it the famous Robin Hood would attend mass at this 12th-century Cistercian abbey in Sherwood Forrest.

Centuries of human activity have forged an eerie landscape of ruins and craters on an exposed and windswept hilltop.

This remarkably intact, 260-year-old cargo ship is only visible at the lowest of spring tides.

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

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

This mysterious hilltop collection of Druid carvings isn't quite what it seems.