There a number of "standard" building types a city would have including temples, stoas, theaters, gymnasia, council-houses and fortifications.

The ancient monuments provide all sorts of engineering interest, of course, I don't list the obvious ones. But here are some other ideas you might not think of.

The Rio Bridge

The Tower of the Winds in Athens

The ancient walls and cistern at Mycenae

The canal at Corinth and the U.S. Corps of Engineers

The fountain of Peirene in Corinth and its lengthy tunnels

The medieval forts in Nafphlio

The theater of Epidaurus with its amazing acoustics

The Tunnel of Eupalinos on Samos

Last modified 3/27/18, posted 8/7/15; original content © 2018, 2015 John P. Nordin