Places adamthehistorianghosthunter Wants to Go

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

The world's longest known cave system.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

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

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A self-built castle made by a mysterious man.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

This frequently-photographed waterfall takes only a short hike to visit.

A castle that was built stone by stone by an eccentric journalist.

A heavenly experience, right here on Terra Firma.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

A strange house built only at night, with rumored mystic inspiration.

Olfactory delights in San Francisco's Botanical Gardens.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

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 befitting the city responsible for supplying the majority of the world's LSD.

Home to items never before seen by the public.

A hip bar decorated with walls of golden skulls.