What is the capital of the Arabian Desert?

This sounds like a crossWord puzzle clue. There is no one capital of the Arabian Peninsula, since it is made up of several countries - each with its own capital. Some sources exclude Jordan and Iraq:

• Bahrain - Manama
• Iraq - Baghdad
• Jordan - Amman
• Kuwait - Kuwait City
• Oman - Muscat
• Qatar - Doha
• Saudi Arabia - Riyadh
• United Arab Emirates - Abu Dhabi
• Yemen - San'a