The Embassy of the United States of America in Baghdad is the diplomatic mission of the United States of America in the Republic of Iraq. Ambassador Matthew Tueller is currently the Chief of Mission.
At 42 ha, it is the largest embassy in the world, and is nearly as large as Vatican City. The embassy complex is about five times the size of the U.S. Embassy in Yerevan, which is the second largest U.S. diplomatic mission abroad, and over ten times the size of the U.S. Embassy in Beijing, which is the third largest U.S. diplomatic mission abroad.
The embassy opened in January 2009 following a series of construction delays. It replaced the previous embassy, which opened July 1, 2004 in Baghdad's Green Zone in a former Palace of Saddam Hussein.
Infrastructure and extensive housing facilities of this embassy, in addition to the normal diplomatic buildings, include:
• A power station
• Waste and water treatment facilities
• Six different apartment buildings for workers
• Two main diplomatic office buildings
• Recreation facilities such as cinema, many tennis courts, a swimming pool of Olympic size, and a gym.
According to Wikipedia