A 12th century cathedral in Salamanca, Spain contains a small carving in the masonry that amazes all who see it - a 20th century astronaut. The document asks how this could have come to be carved by a 12th century stonemason and invites the reader to suggest an explanation.

1. Here is a Mystery! See if you can suggest an answer Click to move on...

2. In the Spanish City of SALAMANCA the Cathedral there was built in 1102

3. I have asked my work colleagues if this item is TRUE... and they assure me that it is INDEED (and nobody has an answer)

6. There is a small detail carved into the masonery which amazes everyone that sees it...

10. Can You Suggest how a 20th Century Astronaut came to be carved by a 12th Century Stonemason? If you can - please E-mail tombaldwin@ireland.com