Rising above the waters of the Mediterranean and the captivating Principality of Monaco, the penthouse is the world's most expensive property per square meter.
"Tour Odeon takes luxury to another level. The sophisticated interiors enhance one's enjoyment of the stunning 360 degree views and the shimmering waters of the Mediterranean," Karine Lackner from La Conciergerie Du Qatar, the exclusive property agent in Qatar for the property, said.
The World Luxury Expo is also showcasing the "most expensive soap in the world," which is made of pure gold dust, olive oil and virgin honey and is embedded with diamonds.
With a price tag of USD 3,800, the soap is dubbed the "Qatar Royal Soap."
A selection of rare lithographs and etchings of the biggest names in 20th century art is also on display at the Expo.
The Expo, following the Doha edition, will return to the Kingdom of Saudi Arabia and Abu Dhabi in 2014, creating an annual signature series of events in the Gulf Cooperation Council (GCC) region.