This landmark church at the Flathead Reservation mission features 58 ceiling and wall frescoes painted by the mission's cook.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

A small Montana town commemorates the dog who waited at the train station every day for his owner to return.

The shortest river in America flows for just 201 feet.

Spectacular views await visitors to this lake.

Touch an actual dinosaur bone at this eclectic trove of Rocky Mountain treasures.

"Polynesia on the Plains."

This single room has survived the centuries with almost no deterioration.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

The modern birthplace of Irish freedom.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The fifth-longest natural arch in the world, and the longest outside China.

A house carved into a rock in the 1940s.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

The location where the iconic movie character declared it was time to go home.

Most-visited and most-photographed slot canyon in the American Southwest.

These mid-century motels once housed the workers who built the Glen Canyon Dam.

A sharp bend in a dramatic river canyon cut through red rocks.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This quiet park's strange sedimentary spires were named after Kodak's color film.

Despite its name, this route in southern Utah offers a heavenly day trip.