A close second would be Ethereum. Definitely be interested to hear about the decentralized sites to buy bitcoin!! Please visit CEX. Buy Bitcoin Worldwide, nor any of its owners, employees or agents, are licensed broker-dealers, investment advisors, or hold any relevant distinction or title with respect to investing. It accepts Bitcoin, as a form of payment for virtually every item in its inventory. Like all major exchanges, Coinbase do require ID submission before you can finalize an order.