Don't blink or you'll miss it.

An old slave lookout in Cuba's historic sugar cane fields.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

Neo-cave art on the macro scale.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

An enormous image of Utah's salt flats made entirely from tape.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Come for the speed, leave in love with the desert.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

This bridge was constructed from the rubble of the infamous Bastille.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

Visitors to this library are in for a real-world education in modernist architecture.

Home to the deepest rift anywhere on Earth.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

An architect's childhood fantasy treehouse made real.

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