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

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

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

The modern birthplace of Irish freedom.

A stunning Victorian abbey and walled garden on a lakefront.

A hugely vast Irish landscape of barren rock that stretches for miles.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

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

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

This 12-foot-tall T-rex is the largest K’Nex skeleton sculpture in the world.

One person's lost luggage is another person's treasure.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

Two small markers remember the Alamo's feline protectors.

Abandoned railroad tunnel is home to a colony of three million Mexican free-tail bats.

An eclectic collection of artifacts from the Wild West is preserved in a remote fictional pioneer town.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This roadside stop between Goblin Valley is the perfect location to view some of the region's natural wonders.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

Despite its name, this route in southern Utah offers a heavenly day trip.