This mansion in Boulder City, Nevada, looks more like some incredible theme park than a private home. There is a lazy river with a waterfall and a secret grotto, a huge swimming pool and a faux saloon – all in the backyard. The place with a total area of 6430 sq. m (1.59 acres) also features a tennis court and two green lawns. The 858 sq. m (9,245 sq. ft.) mansion has 6 bedrooms, 7 bathrooms, eight-car garage and a vast wine cellar. The price tag of the property is $3,000,000.