A museum dedicated to the alleged Roswell Incident.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

The final resting place of the living embodiment of the famous Forest Service symbol.

An eatery for UFO seekers on the Extraterrestrial Highway.

This sign designates the road that leads to the infamous Area 51.

Mysterious meeting place for UFO hunters near Area 51.

The self-proclaimed gateway to the Extraterrestrial Highway.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

World's largest Christmas store.

One of the few working locomotive roundhouses in the United States.

The first KFC is on the National Register of Historic Places.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

The world's longest known cave system.

Home to the deepest rift anywhere on Earth.

This little museum has an exhibit devoted to the elusive forest denizens.

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

Research missiles and rainbow auroras at the world's largest land-based rocket range.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

A trading post in the North Pole where children send letters.

The telescope that discovered Neptune.

King Ludwig I's collection of beautiful women.

One of the most easily accessible examples of the rare 1960s UFO houses.