In Germany, the former capital Bonn has been designated with the unique title of federal city. Since April 28, 1994, it is the second official residence of the President of Germany, the Chancellor of Germany, the Bundesrat (upper house), the first official residence of six federal ministries, and approximately 20 federal authorities. This is merely a title, since Bonn is like many other German cities an independent city, but part of a state.
The Russian constitution states that it has three federal cities: Moscow, St. Petersburg and Sevastopol, though most of the international community considers the latter, and the rest of Crimea, to remain Ukrainian territory despite its annexation by Russia in 2014.
Federal city is the official title of Bern as it is the seat of the Swiss parliament and government.
Historically, Washington, D.C. has been called the “Federal City”.
Some national capitals, like Astana, Bogota, Brasilia, Buenos Aires, Canberra, Caracas, Jakarta, Mexico City, Washington, and Seoul, among others, have a federal status, not belonging to any state or province (or being a state or province of their own, as is the case of Moscow, Oslo, Sofia, Delhi and other cities). Sometimes this is called a federal district.