If you're a history buff looking to get your mind blown a little, Reddit's ColorizedHistory subreddit is the place to be. The forum is dedicated to sharing original, high-quality colorized photographs of historical black-and-white images. The colorized Civil War photos over at r/ColorizedHistory - many done by a user called zuzahin - pack a major wallop.
There's something incredibly affecting about taking grainy, black-and-white Civil War photos from the 1860s and making them look like they're from the 1960s. It sounds silly, but you find yourself caring a lot more about the subjects in the photographs when the blood is returned to their faces and their world actually begins to resemble ours. It almost feels like time travel.