The only museum dedicated to the history of the "Magic Lantern," a medieval slide projector.

A collection of vintage liaison aircraft kept in flying condition and on display at an airfield in San Antonio.

San Antonio's first 3-D stereoscopic mural is a trippy treat for the eyes.

A restored 1920s cascade stairway provides one of the best views of Oakland's Lake Merritt.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

What remains of the summer palace of King Kamehameha III.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.