The final resting place of the great navigator, or maybe his brother.

A lush indoor jungle fills this bustling Madrid transportation hub.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

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

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The Boston square dedicated to the dark poet who was born nearby.

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

The museum chronicling a treasure hunter's dream, fulfilled.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

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

The end of times arrives, at least for the fish in the O.C. Fisher Reservoir.

A local landmark with generations of spraypainted messages, and more being added each day.

This now-deactivated naval base defended the Florida coast for centuries.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The eccentric mansion of one the most popular horror authors of modern times.

Arizona's first government hub is a rustic cabin now preserved as part of a historical museum.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

A sharply wedged sundial marks the point at which each day in the United States begins.

A geological mystery on Camelback Mountain.