Multiple choice general knowledge Capital of Cambodia Phnom Penh Bujumbura Sofia Porto-Novo Reveal answer Fill a bubble to check yourself A Correct answer Explanation Phnom Penh is the capital and largest city of Cambodia, located at the confluence of the Mekong and Tonle Sap rivers. Bujumbura is in Burundi, Sofia is the capital of Bulgaria, and Porto-Novo is the capital of Benin.