This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.

A tribute to the successful role of the Keflavik Naval Air Station in the defense of Iceland, United States and NATO Alliance.

This ancient Corinthian helmet is South Korea’s only national treasure of Western origin.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

This Rocky Mountain mansion was the luxurious home of the authoritarian leader of a company town.

This work of engineering is imbued with elegance and ingeniousness.

Inspired by Thomas Stothard's painting of the "Journey to Canterbury," albeit with Canterbury natives.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

This medieval castle was reconstructed by Carlo Scarpa.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.

Little remains of the once flourishing Asbestos' asbestos mine.

A surprising collection of bronze faces beneath a bridge in Loveland.

The natural hot spring that was integral to the creation of Canada's first national park.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

This Roman monument is surrounded by more recent construction, offering a stark contrast between ancient architecture and the modern urban landscape.

A memorial dedicated to the victims of the Columbine High School shootings.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

A quirky mausoleum celebrated once every five years with young dancing girls, widows, a tax man, and more.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

A prehistoric rock shelter that's literally in someone's backyard.

This massive home was constructed by one of the greatest conservationists in Colorado history.