A giant milk bottle from the 1930s beckons drivers to this diner.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

This lovely Scottish nature walk leads to the source of a local legend.

Contains a wealth of information about the first exploration and later use of the Green and Colorado Rivers.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

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

Jurassic Park—A Still Life.

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

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

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

A replica that won't float away.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

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.

A house carved into a rock in the 1940s.

This museum glorifies the humble potato.

Home to the deepest rift anywhere on Earth.

Nuclear reactor created the plutonium used on Nagasaki.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

An old World War II hangar holds 20 vintage aircraft and the rare opportunity to take a ride in a 1940s warbird.

A stunning landscape of bunkers that once stored chemical weapons.

Get your cosplay on at Portland’s only Medieval fantasy-themed mead hall.

All aboard the world's longest miniature railway.

Home of Howard Hughes' Spruce Goose.