Spruce Mountain Fire Lookout
For extreme-heights junkies, this vertigo-inducing tower, already perched at 10,000 feet, ascends 55 feet above the forested mountainside. While there, make sure to hike the 12,013-foot Medicine Bow Peak and drive up to the nearby Snowy Range Scenic Byway. Includes: Two single beds, propane refrigerator, stove, heater, and lamps; pulley system and historic fire finder. No water; pit toilet on the ground ($40 per night).
Location: Medicine Bow-Routt National Forest, Wyoming
Available: Mid-June to October 1
Elevation: 10,003 feet