Non-fungible tokens, or NFTs , are changing the way we think about art—and investors are starting to take notice. In the last year, NFTs have shot to the forefront of the crypto space. The cryptographically-unique tokens make it possible to create real-world scarcity for digital objects, and artists have seized on the opportunity presented by the technology. 2021 has seen a major uptick in interest around NFTs, with Google search interest in the term reaching its highest-ever numbers, and NFT marketplaces like Nifty Gateway and OpenSea clocking in record trading volumes as everyone looks to get to grips with this emerging asset class. But it's not just interest that's increasing. Individual NFTs are selling for massive sums of money, with artists like Beeple making headlines for record-breaking sales. With that in mind, we take a look at the ten most ridiculously expensive NFTs ever sold, and will leave you to judge their true value. 1. Everydays: The First 5000 Days: $69.3 Million The record for the most expensive NFT ever sold (and one of the most expensive artworks ever sold) goes to EVERYDAYS: THE FIRST 5000 DAYS . The artwork, created by famed digital artist Mike "Beeple" Winkelmann, sold for $69.3 million at Christie's—the first time that the venerable auction house has ever sold a purely digital artwork. The NFT represents a collage of 5,000 of Beeple's earlier artworks, demonstrating his development as an artist over the course of his career. It was purchased by Vignesh "Metakovan" Sundaresan, who initially remained pseudonymous, but later revealed his identity . “The point was to show Indians and people of color that they, too, could be patrons, that crypto was an equalizing power between the West and the Rest, and that the global south was rising,” Metakovan explained . The second-highest bidder on the piece was none other than Tron CEO and founder Justin Sun, who bid a whopping $60.2 million before getting sniped at the last second by Sundaresan. 2. CryptoPunk #7523: $11.8 Million CryptoPunk #7523. Image: Larva Labs Get used to seeing these pixelated faces— CryptoPunks make up a number of the most expensive NFT sales. They're a randomly generated set of 10,000 unique digital characters, and are some of the first examples of non-fungible tokens released on the Ethereum blockchain. Here Are the Biggest NFT Crypto Collectible Sales in the Last Month They were developed by Matt Hall and John Watkinson from American game studio Larva Labs. Initially given away for free, some CryptoPunks with particularly rare or desirable features have gone on to sell for significant sums. This particular one— CryptoPunk #7523 —has several such attributes, being one of just nine Alien punks. Its medical mask attribute also gives it a unique topicality in these COVID-influenced times, one reason why it was snapped up in Sotheby's "Natively Digital" auction for a whopping $11.8 million by DraftKings' largest shareholder , Shalom Meckenzie. “I really wanted this particular CryptoPunk,” Meckenzie told  Decrypt . “It is part of the alien collection, which is the rarest of the punks, and the only alien that has a mask. I thought it was symbolic of Covid and the popularization of NFTs.” 3. CryptoPunk #7804: $7.56 Million CryptoPunk #7804. Image: Larva Labs Dylan Field, the CEO of design software company Figma, is behind the sale of the third-most expensive NFT in history— CryptoPunk #7804 . The NFT sold for a cool 4,200 ETH in March 2021 , at the time worth $7.5 million. One of just nine "alien" CryptoPunks, it also sports three accessories, a forward cap and shades, and a pipe (indeed, it's the only alien CryptoPunk to have a pipe or a forward cap). 4. CryptoPunk #3100: $7.51 Million CryptoPunk #3100. Image: Larva Labs We weren't kidding when we said there are a lot of CryptoPunks in this list. Another alien punk, CryptoPunk #3100  sports a headband and sold for 4,200 ETH ($7.51 million) in March 2021. 5. CROSSROAD: $6.66 Million CROSSROAD is an NFT created by acclaimed digital artist Beeple. It features anti-Trump messaging, and an enlarged Donald Trump-like figure laying in a defeated heap with profanities written across his naked body. It didn't always look like that, though; the artwork was designed to change based on the outcome of the 2020 election. Had Trump won, it would've depicted him wearing a crown and striding through flames. CROSSROAD By @beeple The #1/1 from beeple's first NG drop has just resold on the secondary market for $6.6 million. History has just been made. Congrats to beeple and of course to @pablorfraile for the sale. pic.twitter.com/mTYG4VABSw — Nifty Gateway (@niftygateway) February 25, 2021 Nifty Gateway, a popular marketplace for digital collectibles, brokered the $6.66 million sale of the NFT between its original owner (Twitter user Pablorfraile ) and an anonymous buyer. The NFT was sold just four months after it was initially purchased, at roughly 10x its original price. 6. Ocean Front: $6 Million Ocean Front by Beeple. Image: Beeple In March 2021, Justin Sun finally got his hands on a Beeple NFT, paying $6 million for the artist's digital work Ocean Front . Lest you think that NFTs are just an ego-stroking exercise for crypto billionaires, the money did end up going to a good cause; the profits for the auction went to the Open Earth Foundation, a non-profit that aims to track global progress on the Paris Agreement to combat climate change. FUCKKKKKKKKKKKKKK!!!!!!!!!1111111 MASSIVE CONGRATS TO @justinsuntron !!!!!!!!!!!1111 SIX MILLION DOLLARS for climate change. THIS is what we need to enact real meaningful change... to work TOGETHER instead of fighting one another. we CAN do this, we WILL do this. pic.twitter.com/htsWhv503l — beeple (@beeple) March 23, 2021 7. CryptoPunk #5217: $5.44 Million CryptoPunk 5217. Image: Larva Labs One of 24 Ape punks, CryptoPunk #5127 also sports a knitted cap and a gold chain, and sold for $5.44 million back in July 2021. 8. World Wide Web source code: $5.43 Million Source Code for the World Wide Web World Wide Web creator Sir Tim Berners-Lee surprised many when he announced that he planned to sell an NFT representing the original source code of the web in an auction at Sotheby's. Critics complained that the sale of the web's source code to a single individual went against the decentralized nature of the web; Berners-Lee, in turn, argued that it was "totally aligned with the values of the web." Tim Berners-Lee’s Web Source Code NFT Sells for $5.4 Million at Sotheby’s Of course, it's not really the web's source code—which is open source and in the public domain , and is thus freely available to view and copy. Instead, it's an artistic representation of the source code, a bundle of artworks packaged together in an NFT. In any case, the sale went ahead, with the NFT, titled "This Changes Everything", selling for $5.4 million . Days later, someone spotted a coding error in the artwork. 9. CryptoPunk #7252: $5.3 Million CryptoPunk 7252. Image: Larva Labs The last owner of CryptoPunk #7252 (a Zombie punk with a chinstrap, earring and crazy hair) may have paid $2.5 million for it when they bought it in early August 2021, but it took them just a few weeks to double their money; it was sold on August 24 for 1,600 ETH ($5.33 million). 10. Stay Free: $5.27 Million "Stay Free". Image: Edward Snowden NSA whistleblower Edward Snowden threw his hat into the NFT ring in April 2021, creating and auctioning off a digital artwork titled "Stay Free" . The work depicts a cut-out of a pensive Snowden against a background of the text of a US appeals court decision—that the Patriot Act did not permit mass collection and surveillance of Americans' phone records by the National Security Agency. FIVE POINT FIVE MILLION from @PleasrDAO . It feels like the whole staff of @FreedomOfPress is watching live, and we've never seen anything like this. This is more than a spectacle -- this is drama. All eyes turn to the dark horse. https://t.co/GOcrOiraXS — Edward Snowden (@Snowden) April 16, 2021 Snowden sold the artwork for a whopping $5.4 million on community-driven NFT marketplace Foundation, with the proceeds going to the Freedom of the Press Foundation , a non-profit that advocates for free speech, freedom of the press, and public-interest journalism. Perhaps more interesting than the price paid, however, is who bought it: PleasrDAO, a decentralized autonomous organization ( DAO ) set up to acquire "culturally significant pieces with a charitable twist" on behalf of its investors . It's an example of an investor DAO, a new breed of non-hierarchical organization that pools its resources to make investments. 11. Save Thousands Of Lives: $5.1 Million Frame from "Save Thousands of Lives". Image: Noora Health NFTs aren't just about billionaires claiming bragging rights over pixelated apes and zombies. They can be used for good causes, too. Non-profit Noora Health created its "Save Thousands of Lives" NFT to raise funds for its work with new mothers in South Asia. It estimated that it could save nine babies in every 1,000 live births for a cost of $1,235 per life saved; with the NFT selling for 1,337 ETH ($5.1 million) in May 2021, it's certainly accomplished its goal. And now 1,337 ETH ($5M) - where do we even begin to thank @paulg ! This gift is truly incredible, and will give thousands of new moms the knowledge, skills & confidence to care for their babies during and after the ongoing COVID-19 crisis in India & Bangladesh. Thank you so much! https://t.co/bqtTeKkcwo — Noora Health (@NooraHealth) May 8, 2021 12. CryptoPunk #2338: $4.4 Million CryptoPunk #2338. Image: Larva Labs The sixth CryptoPunk on our list sold in August 2021 for $4.4 million ; in one of the more astonishing examples of a return on investment, it was purchased by its previous owner for just $443 (3.5 ETH) back in November 2018, meaning they made just shy of a 1,000,000% return in less than three years. The punk itself is one of 88 Zombies in the entire run of 10,000 CryptoPunks, and one of just four Zombies with the thin mohawk attribute, making it a rare specimen indeed. Punk 2338 bought for 1,500 ETH ($4,379,924.93 USD) by 0x7cd3fc from 0xfab9b8. https://t.co/uWIpBAC8ew #cryptopunks #ethereum pic.twitter.com/bpLcaYt2Av — CryptoPunks Bot (@cryptopunksbot) August 6, 2021 13. REPLICATOR: $4.1 Million This NFT comes with a unique twist. As its name suggests, REPLICATOR , a digital artwork by Micah “Mad Dog Jones” Bowbak, makes copies of itself. The self-replicating NFT spits out potentially hundreds of variant NFTs that can then be sold by the owner. Welcome to REPLICATOR: an NFT experience comprising 7 generations of unique artworks. (a thread) pic.twitter.com/DBQalDHhe5 — Mad Dog Jones (@Mad_Dog_Jones) April 2, 2021 That uniqueness wasn't lost on the buyer of the artwork, who snapped it up at auction for just over $4.1 million in April 2021. 14. Fidenza #313: $3.3 Million Fidenza #313 by artist Tyler Hobbs. Image: Art Blocks While the likes of CryptoPunks and Bored Ape Yacht Club have been making headlines, Ethereum-based generative art collection Art Blocks has been quietly racking up hundreds of millions of dollars in trading volume. In August 2021, it marked its largest single NFT sale to date, with Fidenza #313 by Tyler Hobbs changing hands for 1,000 ETH ($3.3 million at the time of purchase). The seller bought it for 0.58 ETH (around $1,400) just two months earlier, for a return on investment of over 235,000%. It's not the only Fidenza piece to have sold for north of $1 million, either; three other works from the collection, which generates a unique piece made up of colorful rectangles and squares upon minting, have traded hands for seven-figure sums. The Art Blocks project as a whole generated $300 million in trading volume in August 2021 alone. 15. The First Tweet: $2.9 Million just setting up my twttr — jack (@jack) March 21, 2006 An NFT version of Twitter co-founder and CEO Jack Dorsey's first tweet, which was also the first-ever tweet on Twitter, was auctioned throughout March 2021 and finally sold for an eye-popping $2.9 million. The token was minted the token through a platform known as Valuables — which allows users to craft NFTs that represent their tweets . As part of his philanthropic efforts , Dorsey pledged to immediately convert 100% of the proceeds to Bitcoin before donating it to Africa Response.