The illuminating collection of L.A. street lights is run by the city and only opens one day per month.

A collection of pianos and more guaranteed to delight anyone interested in music history.

A beloved, quirky little fountain featuring a large frog spitting water at a naked boy.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

This suburban house is made of dirt, and almost sparked a revolution in home construction.

A brick-paved former section of the historic coast-to-coast highway.

A daily replay of the experiment that proved the rotation of the Earth.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A rare view of a preserved Victorian science museum.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A layered tribute to the work of mosaicist Isaiah Zagar.

This Indiana walk of fame honors music legends with record-shaped plaques in the pavement.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

A headstone tells the sad story of a lost little boy and his pet dog.

A tribute to one of the most famous cowboys on TV, and the consumerism that fueled his popularity.

All that remains of a gigantic earth-moving machine.

A gas station has taken the place of the home of the 19th American President.

Artifacts fill the old headquarters of the hugely influential political movement to ban alcohol in the United States.

"You can only scalp a customer once, but you can give him a haircut every two weeks"-Barber's Maxim.

For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

A museum to a cave explorer whose tragic death was a media sensation, and whose corpse became a tourist attraction.

What is it about mushrooms that makes people wish they lived inside of them?

An abandoned relic of the city's failed experiment with below ground transit.