Viceroy Hotel, Bali
Balinese royalty once resided in surrounding villages. Standing in the “Valley of Kings,” the Viceroy consists of 25 private pool villas. This secret tropical hideaway is accessed by helicopter and offers some of the best views on earth.
Actually, Lion Sands is one of many 5-star lodges inside the Sabi Sand Game Reserve. In addition to Lion Sands' "regular" lodges which are permanent brick-and-mortar structures, they have 3 different tree-houses which can be booked on a per-night basis over and above your stay (of which ranges anywhere between $1000 - $2500 pppn). The tree-houses are unfenced, so the chances of big game like elephant, buffalo, lion, and leopard roaming below your tree-house, although small, is there.
Pictured is the Chalkley's Treehouse, which runs at around $380 pppn extra, which includes a tappas-style dinner.
Disclaimer: Getting laid is not guaranteed, although certainly implied.