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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

The first declared National Monument in the United States.

A semi-scholarly approach to sex.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Medicinal spa created with the discharge from a geothermal energy plant.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The Uros people live on floating reed islands in lake Titicaca.

Home to 23 voluptuous and instantly lovable sculptures by one of Latin America's most celebrated artists.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

One of two giant blue cockerel statues erected with an intentional double meaning.

The only arched bridge made of stone on the entire Mississippi River.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Funhouse of found art and participatory sculpture.

Where beautiful signs live on forever.

In Namibia there is an installation that explores the intertwined linguistics and existential beliefs of an imaginary community.

Road signs in Namibia mark the location of one of the five major circles of latitude.