Sometimes, people are scattered. They leave their stuff lying around or lose it. Even the most important things to them, lost to time. We are all guilty of this. It slips our mind, such as losing a wallet or a phone. Worse, an important document, like a passport, which requires a lot of effort to replace.

But what about something that is irreplaceable? Like a photo. What happens when someone loses a photo? They can never recover it. Most film photos are one of a kind. And if they're lost, that's it. End of story.

Except, maybe not. There is a community on Reddit called "Found Photos," where connoisseurs uncover lost photos they find in thrift stores, pawn shops, and garbage bins. Some of these photos are nearly a century old. How were they lost? Nobody knows. But rest assured, they were found.

These photos have mysterious origins. Strangers that feel like relatives. Events that you swear you've seen transpire before. Glimpses into the intimacies of someone else's past.

Here are 25 mysterious found photos that people found in dumpsters and second-hand shops. Enjoy, and be sure to share with anyone who may have lost their favorite picture.