The world evolves with the times. However, the latest inventions don't always outdo innovative objects from another era, which in turn revolutionized the world back then.
So, if you think you've seen it all, read on and you'll have to agree that we live in a weird and wonderful world, whether it's down to our creativity or the work of Mother Nature herself. Here are 18 objects, gadgets and animals that we bet you never knew existed!
1. A pop-up geometry book from 1570
2. 100 years ago, fridges took up a lot of space!
3. This contained radioactive pills that a women with thyroid problems had to take!
4. Restrooms on a space vessel
5. How to combat the cold in Yakutia, Russia
6. Ever seen an albino turtle?
7. People in the 19th Century took this as medicine!
8. A hermaphrodite butterfly!
9. A black leopard - a very rare sight indeed!
10. A washing machine and mangle from the early 20th Century
11. The impressive size of a bald eagle's head!
12. An x-ray showing an artificial heart
13. Meet Uuno, a dog that's used to for video game movements!
14. No, it's not sinking! This vessel transports ships and even oil platforms!
15. Red light allergy treatment!
16. A stripped down piano!
17. A bald squirrel
18. Imagine working on this mountainside!