These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

See some of the world's greatest racing horses at this idyllic thoroughbred breeding facility and garden complex.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Legend says if this neo-Gothic basilica is ever officially completed, the world will come to an end.

Home of the "true" equator.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

Still standing despite its considerable slant, this tilted lighthouse has become a local symbol of resilience.

Take a dip in the world's largest mineral hot springs pool.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

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

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

Commonly acknowledged as the only public monument to the Devil himself.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A rusted metal giant pays tribute to Birmingham’s industrial past.