Non-Fungible Tokens are unique, easily verifiable digital assets that can represent items such as GIFs, images, videos, music albums, and more. Anything that exists online can be purchased as an NFT, theoretically.
NFTs are different from cryptocurrencies because they’re not interchangeable. Think of Pokémon cards: You can trade them, but a Gastly is not the same as a holographic Charizard. But a bitcoin is indistinguishable from another bitcoin.