David Friedman of Ironic Sans ran down a mystery peeking out of pictures of Joe Biden in the Oval Office, the president's office in the White House's West Wing. What's the deal with a picture frame that has no picture in it? It's a clever bit of unexpected camouflage. Friedman finds the answer, but then goes down the rabbit hole about presidents and the modern technology they enjoyed in the Oval Office. We won't find out anything really secret, but we learn some really neat tidbits about presidential history in this video. While researching this video, Friedman took a tour of the White House, and it's not the way it used to be. If you'd like to see it yourself, there's a visitor's guide to the West Wing online.