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

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

A museum dedicated to the alleged Roswell Incident.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The world's longest known cave system.

Pompeii's less famous neighbor is still revealing her secrets.

The magic's in the hole!

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Resting place of Hollywood's immortals is also site of summer film screenings.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Northern Ireland's Brobdingnagian stepping stones.

The first declared National Monument in the United States.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The ghostly remains of an accidental sea.

A walk through the historic city center, under the streets of Seattle.

Thousands of well-dressed mummies below a monastery.

Dramatic river bend surrounds a natural red-rocked pedestal.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A church of bones, decorated with 40,000 human skeletons.

The largest collection of two headed animals in the world.

A cemetery housing wild west legends in South Dakota.