This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

This large, circular tomb is the final resting place of the first emperor of Rome.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

The commemorative stone column conceals a secret laboratory.

The Great Fire of London and the regulation of one-way streets both started in this alley.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

Ivy-covered Medieval tunnels cut through this charming town in France's Loire Valley.

The colorful stairs are made with marble from the world's major quarries.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

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

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

Tubing through a cave lit with glowworms is a magical underground experience.

Water and windows define this defensive Italian well.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

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

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

The last Viking king of Denmark is buried inside the crypt of this cathedral.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

This small church was constructed over the ruins of three temples dating to the Roman Republic.

This multicolored meandering masterpiece is Britain's longest bench.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.