A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

The world’s first penitentiary, meant to be humane, drove men insane.

This colonial town in Colombia sits around the largest stone paved square in South America.

This whimsical home made entirely from clay is basically a giant piece of pottery.

A museum built around a bus-sized fossil on the side of the highway.

This small bridge serves as a symbol of South America's independence.

Cathedral carved out of salt, located a mile below the Earth's surface.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

Erected in 1803, it is the first astronomical observatory that was built in the Americas.

A celebration of Colombia’s premier contemporary artist.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

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

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

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

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

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

One English town's celebratory landmark spurred more trouble than anticipated.

A monument to the thousands of Canadian soldiers who died capturing the French ridge during World War I.