Great for a Friday posting - enjoy! I'd love to see if anyone here an seen/been to any of these. Ariau Towers Hotel Brazil Not for the acrophobic, this hotel lets you sleep in the treetops of the Amazon Rainforest. "Tarzan's house," for example, is perched on stilts, 80 feet above ground. Situated on the bank of the Negro River, Ariau's apartments, suites and tree houses are linked by a series of catwalks. Rates start at $280 per night and include meals and tours. Beckham Creek Cave Haven Parthenon, Ark. A "luxurious cave" may sound like the ultimate contradiction. This property, built into the Ozark Mountains, features natural rock walls and ceilings as well as Jacuzzi bathtubs and large windows for letting in light. Built as a Cold War bomb shelter by John Hay, founder of Celestial Seasonings tea, it's now a base from which to hike, bike and explore local springs. Rates start at $450 per night. Casablanca Hotel New York Ever wanted to live like Bogey? The 48-room Casablanca Hotel in Times Square features a Moroccan décor complemented by Rick's Café, named for the restaurant in the classic 1942 film featuring Humphrey Bogart and Ingrid Bergman. Rates, ranging from $219 to $459, include continental breakfast and wine each afternoon. Hydropalace Qingdao, China Scheduled to open in 2009, the Hydropalace in Qingdao, China, will be anchored in the Yellow Sea in water that is 16 to 20 meters deep at low tide. Guests will arrive at the hotel by yacht, which will also go to a planned land-based hydrotower, scheduled to open for the 2008 Olympic Games in Beijing. Rates for suites are expected to be well above those for five-star properties. Regular rooms are to be priced in the range of other five-star properties. Ice Hotel Quebec, Canada The Ice Hotel is created anew each year out of 15,000 pounds of snow and 500 pounds of ice. The 34-room hotel features an ice chapel, two art galleries and a host of outdoor activities. The temperature inside the hotel ranges from 23 to 28 degrees Fahrenheit and the beds are carved from ice. Happily, the bathrooms are not--the heated facilities are in the adjacent hotel. The hotel is open from January to April, with rates starting at about $175 per night.