Billionaire businessman William Koch has relisted his famed Elk Mountain Lodge property in Aspen, and this time he's asking $100 million. Not only is it Aspen's most expensive listing (again), but it's also one of the priciest homes for sale in the entire country. Located just 10 miles from downtown Aspen, Koch originally bought the property for $26.5 million in 2007 and put the compound on the market for $89.9 million in June 2014. Why the $11 million price increase from last summer's ask? According to listing agent Craig Morris of Aspen Snowmass Sotheby's, the current price includes not only the original lodge on 55 acres, but also "three other parcels, together worth substantially more than the $11 million price increase." What does one get these days for $100M in Colorado? Altogether, the four parcels total 82.6 acres and feature 28 bedrooms, 30 bathrooms, and even a full-size indoor basketball court.