I got the main idea of uploading this shot as a Valentine gift from this page.
It seems it doesn't fit to Valentine's day as I thought before uploading ;)
BTW, happy Valentine :*
And some info about the subject:
This is a select of pre-Islamic craves.
State of discovery: Blue mosque of Tabriz (8 meters depth)
Ancientness: 3000 years
Added to flickr Explore (interestingness) page of 14 February 2007.