Nostalgia is a weird feeling. It's one of those feelings that can't quite be explained, and it's sort of bittersweet. Nostalgia is like remembering another time, maybe a happier time, but knowing that those times are gone and cannot be revisited. Things have changed, some for the worst, some for the better, but the memories will last forever.

While nostalgia can be different for everyone, and there are certain fond memories from everyone's childhood, there are some big things that are pretty universally understood as being nostalgic. '90s nostalgia and early 2000s nostalgia are pretty widely felt. That time was a huge turning point in technology and media, with all the games that were coming out, the colors and commercials and toys, and anyone who was a kid at the time remembers it all too clearly. These times were crucial to the development of technology today too. So many of these brands are still around, just newer and bigger. Here are 25 nostalgic moments from Reddit's /r/Nostalgia that will take everyone on a trip back in time.