Where is the headquarter of The International Table Tennis Federation (ITTF)?

Where is is headquarter of American intelligence agency CIA?

AP News Agency has its headquarter in

The headquarter of Human Rights Watch (HRW) is located in

The Headquarters of UNHCR is located at

Headquarter of the African Union (AU) is located in

Headquarter of The International Association of Athletics Federations IAAF is in

The headquarter of Reuters News agency is located in

The headquarter of NATO is located in

Where is headquarter of European Union?