Sites with mainly pictures:
5
Maecenas: Images of Ancient Rome
This is a very nice site, full of pictures from all over the
Roman Empire. They are organized very cleverly: first by country, and
then clicking on an architectural site name takes you to a new page
with a list of pictures of that structure. Another great thing about
it is that it's set up so that no page takes a long time to load --
so you can easily access exactly what you want in a short amount of
time. Also, the pictures themselves are very good; most of the images
on my site are from this one, by Leo C. Curran.
Sites with pictures and info:
4
"Map of Ancient Rome"
A nice visual overview of sites in Ancient Rome. (Thanks Pinewood Elementary 5th grade class!)
3
"History of Roman Architecture"
A collection of the most famous Roman structures; a list of clickable
thumbnails, each of which gives you a larger image with about a
paragraph of information.
Sites with more links:
4
"Roman Colosseum Seating"
An overview and many more links. (Thanks Alex!)
4
"Engineering in Ancient Rome"
A focus on Roman infrastructure, with many more links. (Thanks Ellie!)
4
"Glassmaking in Roman Culture"
An overview and links focusing on the many uses of glass in the Roman Empire. (Thanks Kensie!)
Other:
3
"The History of Baths"
An overview of bath history, including Greek and Roman bathhouses. (Thanks Melanie!)