The 9/11 Tourist Guy, also known as Waldo, is one of the internet's first truly global viral hoaxes. Appearing shortly after the September 11 attacks, the image shows a man standing on the WTC observation deck with a plane approaching in the background. While initially believed by some to be a recovered camera photo, it was quickly debunked as a Photoshop job created by Hungarian tourist Péter Guzli using a photo taken in 1997. The meme became a cultural phenomenon in the early 2000s, with the 'Tourist' being edited into various other historical disasters like the Hindenburg crash and the sinking of the Titanic, serving as a landmark example of early digital manipulation and urban legend creation in the internet age.