Compare what kind of house you can get for $800,000 in six markets across the country. First we visit Washington D.C., where a young couple converted their tiny 1890s row home into a modern marvel and doubled their space by building up. Next, it's off to the Last Frontier — Alaska that is — a place that's practically synonymous with adventure. This young family experienced a different kind of adventure when trying to build their home, but the result is a masterpiece of materials imported from all over the world. Then we drop in on a home in Villanova, Pa., a neighborhood outside of Philadelphia known as the crème de la crème of High Society and childhood home of Grace Kelly. Last up is a quick tour of homes in San Diego, East Greenwich, R.I., and Rehoboth Beach, Del.