The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

This freshwater spring fills with 10,000 gallons of water per minute.

A ceramic-tiled room at the Seelbach Hotel said to have secret tunnels used by Al Capone and a crowd that helped inspire F. Scott Fitzgerald's 'The Great Gatsby.'

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

Opened in 1911, this small shop is the oldest ongoing establishment in St. George.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

An oddly specific collection of handmade dolls remembers the women of the White House.

A quirky old tree covered in tokens, cans, and bottles of wishes.

A dazzling display of red rocks weathered into spires and hoodoos.

Dubbed the "Blade Runner dragon," this buzzing neon sign is a beloved local icon.

Visitors to this library are in for a real-world education in modernist architecture.

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

What's a diner from the 1939 World's Fair doing in a remote Utah mountain town?

A tunnel with windows, so you don't miss out on the impressive views.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

Come for the speed, leave in love with the desert.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

The sculpture's largest spire points directly toward the North Star.