The "Criterion" of Argos, an ancient monument located on the southwest side of the town, on the foot of Larissa hill, which came to have its current structure during the 6th-3rd century BC period. Initially, it served as a court of ancient Argos, similar to Areopagus of Athens. According to mythology, it was at this area where Hypermnestra, one of the 50 daughters of Danaus, the first king of Argos, was tried. Later, under the reigns of Hadrian, a fountain was created to collect and circulate water coming from the Hadrianean aqueduct located in northern Argos. The site is connected via a paved path with the ancient theatre.