CryptoCities was developed in 2021 and launched officially in February 2022 as one of the first playable NFT's. It was recently upgraded to new version and a hard limit of 25,000 cities was introduced. Only one NFT can exist for any city in the real world - each carefully verified by it's co-ordinates and ranked by size (smaller towns and villages are currently included in this project too). The Nft represents recipe just after minting, so buy some items for your Nft to be traded.