You can buy them where they are listed or on the second market.
New listings (NFT drops) are announced in our newsletter and on Twitter.
Second market listings and sales can happen on NFT marketplaces such as Open Sea, where everyone can move their NFTs via the bridge or on auctions sites or auction houses, eBay, Christie's, or other.
Before you buy on the second market, always make sure to check in the explorer (nft.tknze.com) if the physical artwork the NFT represents has been claimed. If it has not, no problem. If it has, make sure you can trust the seller to give you the real artwork.