CryptoCities was developed in 2017 and launched officially in February 2018 as one of the first playable NFT's. It was recently upgraded to ERC-721 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).
CryptoCities 2018 is an NFT collection. CryptoCities 2018 floor price today is No ETH, with a 24 hour volume of No ETH. As of today, there is a total of 660 NFTs minted, held by 108 unique owners, and has a total market cap of No ETH.