Elevated freight railway turned wildly successful urban park.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Where beautiful signs live on forever.

This one-room schoolhouse in rural Arkansas dates to the 1920s, but looks like it could be the 1820s.

This unassuming Massachusetts residence was built with a trap door to hide escapees on the Underground Railroad.

A tribute to the couples who brave long periods of separation during wartime.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The famed architect designed this Minnesota gas station of the future with a lookout tower.