Here are 10 unusual things humans have left on the moon.

When people travel they often pick up souvenirs to take home with them, but in the case of astronauts journeying to the moon it’s the leaving of items that’s become the norm.

Here are 10 of the more unusual objects that stayed behind.

Number 10. Goodwill messages. Located close to the boot print from the Apollo 11 mission is a silver dollar sized disc containing messages from over 70 nations. The disc left behind was created long before the age of compact digital storage, so making all the words fit required the use of letters thinner than a strand of human hair. 

Number 9. Gold Olive branch. The tree’s bough has long be