6. Pinnacle
With the views that surround the site of timber and real estate mogul Tim Blixseth's soon-to-be-completed estate, it's easy to understand why Montana's called big sky country. Blixseth is building a $155 million ski lodge -- called "The Pinnacle" -- in the billionaires-only Yellowstone Club he developed. It will be the largest property in the community.
To protect against chilly feet, the home's flagstone floors will be heated, and its bathrooms will include fireplaces beside the tubs [source: Forbes]. While it has only 10 bedrooms, the 53,000-square-foot home includes an extensive wine cellar and a heated driveway to guard against the Montana winters. The home's indoor/outdoor pool is conveniently located near the gym and massage room [source: Forbes]. If you're interested in the home, it may be best to jump now -- Blixseth reports that offers to buy the home are pouring in.
The 19th-century villa on the next page has come a long way from its former status as a girl's prep school.
