Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Home of the Large Hadron Collider and the birthplace of the World Wide Web.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The best-preserved Roman small town in North Africa.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

This legendary city has been a tourist attraction for centuries.

The hallucinogenic center of the ancient world.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

This sandstone mansion was the home of two of Oregon's most important pioneers.

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

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

A piece of Seattle’s historic Chinatown preserved inside a modern museum.

This former coal gasification plant found a curious second life as a popular public park.

Granting the right of way to ships over surface traffic since 1917.

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

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

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

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