Mysterious rocks that ring musically when struck.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

A museum dedicated to the history and exploration of both popular music and science fiction.

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

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The final resting place of New Orleans' most famous voodoo priestess.

A one-of-a-kind collection of a unique medium.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Dramatic river bend surrounds a natural red-rocked pedestal.

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

An enormous, inside-out glass globe built in 1935.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A snapshot of the city's fascinating voodoo culture.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Most-visited and most-photographed slot canyon in the American Southwest.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Rippling sand dunes frozen in the Arizona rock.

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

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.