These 100-year-old tunnels in downtown Provo house artists, restaurants, and a few surprises.

Nineteenth-century cabins and volunteer re-enactors offer a window into history.

Pay a visit to America's oldest yarn shop.

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

A small flooded ghost town with a few scattered structures remaining.

Secluded wading pool with small waterfall and lovely nature.

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

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

A sprawling museum located on the former site of the Orphan Girl Mine.

New fungal and bacterial species call this deadly lake home.

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

An architect's childhood fantasy treehouse made real.

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

A beautiful geyser under environmental threat.

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