The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

Three hundred years of preserved Spanish colonial history in San Antonio.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A monument celebrating the idea of reaching inaccessible places.

The highway's southernmost spot is a beloved local attraction.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

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.

An interesting look into 18th-century American history.

The facade of this 16th-century building is decorated with carvings of 300 seashells.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

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

This short bridge is the only thing connecting a tiny Irish island to the mainland.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

Northern Ireland's Brobdingnagian stepping stones.

Started as a kitchen garden, now the second largest botanical garden in the world.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.