Chickensmoothie.com is another one. Source: about 2 years ago

KnownOrigin is a popular marketplace for NFTs, with a focus on digital art and photography. The platform has a curated selection of NFT photographs, ensuring that only the highest quality work is available for purchase. KnownOrigin also offers a user-friendly interface, making it easy for beginners to get started with buying and selling NFTs. Source: over 1 year ago

Known Origin is another marketplace for NFT digital art. Source: about 2 years ago

I am personally not an artist but when I saw these art pieces, they just spoke to me. Artists have their visions and interpretations but their art enables us as aesthete to interpret it the way we want. I hope you guys will enjoy my personal favorites. Go check out my collection on https://knownorigin.io/. Source: over 2 years ago

KnownOrigin is an artist-driven NFT Art Marketplace. Due to its unlimited model, a large number of artists have applied for it. Currently, it has suspended applications. KnownOrigin's investor is BlockRocket, a European blockchain development laboratory. Source: over 2 years ago

NFT For the newcomers, stands for Non-Fungible Token, and means a token representing something unique. It is like an art piece: there will only be one original copy due to smart contract. You can copy it, there will only be one original piece. KnownOrigin, Mintable, Rarible and OpenSea are all great examples of such marketplaces. Source: about 3 years ago