So far, 39 current capitals:
US - Washington
Mexico - Mexico City
Bogota - Colombia
Lima - Peru
Santiago - Chile
Buenos Aires - Argentina
Montevideo - Uruguay
Lisbon - Portugal
Madrid - Spain
Rome - Italy
Dublin - Ireland
London - United Kingdom
Reykjavik - Icleand
Oslo - Norway
Copenhagen - Denmark
Stockholm - Sweden
Helsinki - Finland
Tallinn - Estonia
Warsaw - Poland
Berlin - Germany
Brussels - Belgium
Paris - France
Vienna- Austria
Prague - Czech Republic
Budapest - Hungary
Valletta - Malta
Doha - Qatar
Abu Dhabi - UAE
New Delhi - India
Bangkok - Thailand
Kuala Lumpur - Malaysia
Singapore - Singapore
Hanoi - Vietnam
Taipei - Taiwan
Beijing - China
Tokyo - Japan
Seoul - South Korea
Jakarta - Indonesia
Pape'ete - French Polynesia