Fun fact!
The United Nations Headquarters in New York is although physically in the United States, it’s considered international territory.
Due to an agreement between the US and the UN called the UN Headquarters Agreement, much of the UN complex is exempt from the jurisdiction of local laws and government authorities. The first way that this happens is through inviolability; local police and/or government officials are prohibited from entering the UN Complex unless they have received expressed permission from the UN Secretary-General. The second way this is achieved is through the operation of independent operations; the UN has its own private police force and even a functioning postal service. The third way this occurs is through the supremacy of rules; while US laws generally apply to the UN, the UN has the power to create its own rules that can override any laws, ordinances or regulations of the city, state or federal government within the complex. Although the UN has this sovereign, international status, it does not exist as a separate sovereign nation from the US. Typically, the UN will agree to adhere to most of the local, state and federal laws of the US under a reciprocal agreement in order to operate the UN Facility relatively free from interference of government authorities in exchange for the use of local services such as fire and police protection.