Which country's capital name contains the greatest number of vowels of all of the world's capitals?

Player #6316878, Stop the "Colombo is capital of Sri Lanka" They moved their capital long time ago

According to Google, the full name of Bangkok in English/Thai is : The city of angels, the great city, the eternal jewel city, the impregnable city of God Indra, the grand capital of the world endowed with nine precious gems, the happy city, abounding in an enormous Royal Palace that resembles the heavenly abode where reigns the reincarnated god, a city given by Indra and built by Vishnukarma.

Player #6316878, glad you cleared that up!!

Bollocks it's Colombo