Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

An isolated dive site teeming with cnidarians.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

These eerie outliers of the lightning bug family glow a mysterious blue color.

"X" marks the spot of an echo chamber in the middle of a plaza.

Settled in 1696, abandoned after the Revolutionary War.

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

This empty Detroit high school was too expensive to maintain or destroy.

This sinkhole is disguised as a pond and named after the man who stumbled upon it.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

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

An abandoned water sports stadium that has become a haven for graffiti and decay.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.