Amaizing ancient place. Great for toursist who are visiting to learn part of the history of Plovdiv.
To start with you can not visit this place. You can only gaze at it from afar. There is no information signs about this and it seems no effort has been made for any restoration or maintenance of this forum. It really can not be compared with the forum in Rome. The other ancient site nearby, the stadium is also a disappointment as only a small part of it exists.
Nothing special
I think the comments and photos of other reviewers are for another area as this particular one is derelict and has no access (that I could see). Don't bother. Plenty of others to see anyway - for example the Odeon nearby (where most of these posted pictures are taken).
Very nice place, Romans were the best !!