An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

This unique park is dedicated to a favorite locally born snack line.

The famous Beatle secretly visited this Illinois town several times to visit his sister.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

At least according to the Guinness World Records.

The water of this well in Toledo lost its sweetness after the death of a young love.

After just one epic test blast, this literal loose cannon proved too explosive for combat.

A monument to a beloved aquatic folk hero in the Irish town of Dingle.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

Despite the name, this 16th-century structure in Galway wasn't built by the Spanish.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

It was once nicknamed "the most bombed hotel in Europe."

One of Ireland's most infamous prisons for rebels including men, women and children.

A particularly disconcerting tribute to Irish martyrs.