NYC Tour Guide Practice Test

The address of the United Nations headquarters is 1st Ave., between E. 42nd and E. 49th. This location is specifically chosen by the United Nations to symbolize its global mission of diplomacy and cooperation among nations. The building is situated along the East River, which not only provides a beautiful view but also further emphasizes the UN's commitment to global interconnectedness and peace. The other options provided do not accurately represent the address of the United Nations headquarters in New York City.