Pensmore is one of the largest homes in the United States located in the Ozark Mountains near Highlandville, Missouri, that spreads more than 72000 sqft , reaches five stories, contains 14 baths, 13 bedrooms, has exterior walls 12 inches thick, and was designed to survive earthquakes, tornadoes, and bomb blasts, and is still under construction with its owner, Steven T. Huff, telling The Kansas City Star, in 2015, that "the house should stand for 2,000 years".