Here are 15 photos you never thought you’d come across:

1. William Harley and Arthur Davidson in 1914

2. A watch that belonged to Akito Kawagoe which stopped at 8:15, the exact time of the Hiroshima bombing in 1945

3. Aerial view of a Tire Junkyard

4. Cancer cells under an electron microscope

5. Daytona Beach in 1957

6. Einstein’s desk hours after his death in 1955

7. Genghis Khan Statue in Mongolia

8. George Washington’s teeth

9. Hitler’s Office

10. Mars in color from the Curiosity Rover

11. Michelangelo illustrated his grocery list so that his illiterate servants would know what to buy

12. Nordlingen, a town in a crater. It was formed 14.5 million years ago when a meteor about a mile across landed on Earth

13.  Steve Jobs when he introduced the new Apple II computer in 1977

14. Inside an empty Boeing 757

15. The end of the Great…