One of my photos actually earned an honorable mention in a photo meme. It was my photo of the Roman Colosseum for the PhotoSharks theme "famous." Cool. It doesn't mean I'm famous, alas.
Here is another photo of the Colosseum. I didn't know and found it very interesting that it actually had a subfloor. This was called the Hypogeum and was used for the hydraulics of the structure (at one time they actually staged naval battles in the Colosseum), armories, stage machinery and cages for the animals. Unfortunately this part was not open to the public. My kids were totally bored by this time anyway after a visit to the Forum and too much time in the very hot July sun.