This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

The last fully functional fortress of Germany's World War II Atlantikwall.

One of the earliest large-scale "hyper" roofs in the U.K. is now a derelict roadside attraction.

A working farm turned into a museum dedicated to the world's most unbelievably tiny cars.

These carved medieval "mercy seats" are among the finest in the world.

The UK's largest private house was the subject of a long-lasting political dispute.

Dead weights honor the dead of Portugal's fishing industry.

This sandstone tree trunk is a relic from a long-past era when England had a more tropical climate.

These remarkable cascades are the jewels of Upper Tees.

A spectacular disused railway viaduct in a beautiful countryside nature reserve.

A young Gustave Eiffel assisted in the construction of this skinny metal observation tower.

In an isolated field near a dilapidated barn stands this chilling portrayal of the plight of the Nuba peoples of Sudan.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

The "Seinfeld" diner.

A grand mansion in rural mid-Wales gifted to the Welsh people by two sisters.

Modern sundial uses ancient methods to tell time and date perfectly.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

This pub built its reputation pouring post-shift pints for employees of the cemetery with which it shares a wall.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This pub can leave even the sober feeling slightly unsteady.

The largest of only eight working transporter bridges left in the world.