These stark white cliffs were spat up by the sea and are slowly being retaken by it.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

The largest of London's subterranean rivers and once a mad, bad center of London life.

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

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

Regency-era excess on the English Coast.

Bridge that died in war and was resurected.

Oriental bazaar in the heart of Sarajevo.

A war-torn Olympic relic is being overtaken by graffiti and nature.

A bridge destroyed three times: once as a ruse, then in an actual attack, and finally for the movies.

The remains of the last Bosnian fortress to fall to the Ottomans are still standing.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

A sculpture of a famous ape who was once a beloved household name in London.

The remains of Crystal Palace Great Exhibition of 1851.

Abstract dinosaur models in London.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.