Some things are so rare that very few people have had the chance to see them, so we've compiled a selection.
Imagine if, for example, you found a pink pineapple or a giant Snickers. From natural phenomena to man-made items, people across the world have been snapping and sharing their weird find.
Here are 20 photos that are sure to spark your curiosity!
1. One for chocolate-lovers!
2. Tools used for the maintenance of a dam
3. Ever seen an electric blue wasp?
4. This has to be genetically modified...
5. The shadow cast by the Blue Mountains in the USA
© nicholasaaronpurvis / reddit
6. When you remove a TV screen
7. Because one is better than two?
8. A potato mountain
9. A cookie factory!
10. A dinosaur footprint
11. A giant pear
© vancoura / reddit, © vancoura / reddit