In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.

Eighteenth-century home, where Herschel discovered the planet Uranus.

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

One of Bristol's best-hidden gems has ties to Lord Byron, whence it became the nation's first reformatory school for girls.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

This Grade II Listed Building with an Art Nouveau façade once contained a unique print shop.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

A 15th-century whalebone is tucked away in an unassuming corner of this medieval church.

This secret cemetery where no flag is allowed to fly holds the bodies of American soldiers convicted of heinous crimes during WWII.

This 600-year-old home seems to defy physics.

A tiny chapel clings to a precipice above Germany’s gemstone capital.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

A prison tower–like edifice honoring a beloved local benefactor.

A stone, covered in metal, commemorating an event that happened somewhere else a thousand years ago.

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

This public elevator links the lower city to the upper city of Salvador.

A Tudor-style castle in Brazil holds one of the world's largest armory collections.

This singular art museum in São Paulo is unique inside and out.

This park feels like a lush little jungle full of wildlife nestled within São Paulo.

This attraction is devoted to the wonders of steam power and features a replica of one of its most public disasters.

A former prison complex now displays a historic collection of inmate artwork.

Hidden in plain sight, this lush garden sits atop one of the most iconic buildings in São Paulo.