A solitary lighthouse in Spain was an inspiration to the great Jules Verne.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Barça football fans might see the insignia hidden in a church window as a divine sign.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Giant topiary dog once played a role in a terrorist bomb plot.

The largest prehistoric cemetery on the Balearic Islands dates back over 2,500 years.

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

Comprised of Spanish war cannons, this sculpture once graced the bow of a WWI warship.

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

This "flat geyser" bubbles up out of the ground periodically like a disappearing river.

This demon atop the Notre-Dame de Paris looks utterly bored.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

The museum houses one of the world's largest collections of glass paperweights.

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

This rustic old building is said to be the most photographed barn in America.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

One of the smallest towns in the United States.