Cities of federal significance are urban areas designated by a country's federal government for special administrative purposes. These cities often have a unique status that allows them to operate independently from surrounding regions, providing them with specific governance and resources. Examples include Moscow in Russia and Washington, D.C. in the United States. These cities typically serve as political, economic, or cultural centers, housing important government institutions and foreign embassies. Their special status often means they have distinct laws and regulations, allowing for tailored governance that meets the needs of their unique populations and functions.