Project 23000 aircraft carrier
Project 23000 or Shtorm (Russian: Шторм, lit. 'Storm') is a proposal for an aircraft carrier designed by the Krylov State Research Center for the Russian Navy. The cost of the export version (Project 23000E) has been put at over US$5.5 billion, and as of 2017, development had been expected to take ten years.
Source: Wikipedia — Project 23000 aircraft carrier (CC BY-SA 4.0)