Burj Al Arab is one of the most luxurious hotel in the world and has 7 stars. It is 321 meters high, and is based in Dubai. It has been designed by Tom Wright and has the particularity to have been built in order to not have a shadow on the beach.
The most expensive room is the suite at approximately 42 000€. The dressing of the suites is as bis as a common room in any hotel.
They also had to build an artificial island around the Hotel.