Outsider art meets paleontology at this roadside reptile repository.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

This iconic science fiction house still looks like something from the future.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Medieval torture techniques with a modern conscience.

Iceland's tribute to its thankless civil servants.

This stunning concert hall has become a symbol of Iceland's national recovery.

Three columns of volcanic rock shoot out of the ocean.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

An encyclopedic collection of mammal penises.

The most powerful waterfall in all of Europe.

This elegant arc of a waterfall marks a religious turning point.