This large, castle-like structure is hidden amid the mountains on the grounds of the Utah State Hospital.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Giant, friendly pelicans in Central London, the most unlikely of places.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

A sprawling Victorian farm that has been surrounded by a capital city is one of Canada's greatest treasures.

The largest island on the great salt lake is home to curious creatures and strange stories.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

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

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

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

A small oasis not far from downtown Moab.

This Moab institution functions as both a rock store and a small natural history museum.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

Oddly shaped rock formation, misassociated with a nearby utopian community.

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

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.