Decentraland is a virtual reality platform built on the Ethereum blockchain. It allows users to create, experience and monetize content and applications in a decentralized environment. Users can buy land in the virtual world, build structures and interact with other users in real time. Decentraland uses a cryptocurrency called MANA as its native token, which enables transactions within the platform. It aims to create a fully decentralized virtual world that is owned and managed by its users, rather than a centralized authority.