Montezuma Castle National Monument - Arizona
Gaze through the windows of the past into one of the best preserved cliff dwellings in North America. This 20 room high-rise apartment, nestled into a towering limestone cliff, tells a 1,000 year-old story of ingenuity and survival in an unforgiving desert landscape.
Photo credit to National Park Service
Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to BreakingModern.com, aNewDomain.net, and TechRepublic.