The idea of something being nostalgic means very different things for different people. Nostalgia is a bittersweet feeling, seeing something nostalgic brings back both happy feelings and some that are a little sad. It reminds people of good times but also brings around the sad reminder that those times will never be coming back. There are a lot of nostalgic and important moments that shaped the world as it is today. People and celebrities, movies, games and pieces of technology. It's fun to look back on these fond memories and see just how much things have changed.

While nostalgic moments are different for different generations and groups of people, one point in time that seems to be commonly nostalgic for many is '90s nostalgia and early 2000s nostalgia. So many people who use the internet today are familiar with a lot of that time period. From Reddit's /r/nostalgia, here are 23 photos that may bring back some pretty interesting memories for a whole group of people.