What's left of the majestic city walls is situated along the Mirje street. Restored by the famous Slovenian architect Plečnik.
Wikipedia http://en.wikipedia.org/wiki/Emona#Archaeological_findings
Wikipedia https://sl.wikipedia.org/wiki/Emona
Address 19 Mirje, Ljubljana 1000, Slovenia
Coordinates 46°2'44.381" N 14°29'54.794" E