Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

The overgrown ruins of a once thriving World War I-era copper mine.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

This zombie-themed restaurant stands out in the heart of corn country.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

The blinking light atop the iconic landmark has been sending secret messages for decades.

This golf ball–shaped former desert real estate office now houses a UFO museum.