John Denver’s songs about the beauty of Aspen, Colorado helped to propel it into a very popular resort town. Now it has the highest real estate costs in the country. Surprisingly, many of these multi-million-dollar homes are seasonal. Across from the Wheeler Opera House is a park called Aspen Mall. The centerpiece is the Mill Street Fountain, which is computerized to make the water dance at seemingly random intervals. It is extremely popular on hot days with children like this little girl.