Riyadh (Arabic: ar-Riyāḍ) is the capital and largest city of the Kingdom of Saudi Arabia. The city is located in the geographical center of the Arabian Peninsula It has a population of over 4 million, and is home to over 20% of the population of Saudi Arabia. The name means a place of gardens and trees ("rawdah").
On May 12, 2003 al-Qaeda targeted a housing complex where westerners lived killing 26 people. 9 suicide bombers took part in the attacks. With this attack Saudi Arabia would retarget terrorists, although similar attacks would succeed in November 2003.