The Roman site at Călugăreni was part of the limes defensive system, protecting Niraj Valley and Dacia province. Its exact location was established in the 19th century. Excavations revealed an auxiliary infantry unit, with command building, baths, and civilian houses. In 2015 the Archaeological Park was created, managed by the Roman Limes Research Centre. The park, covering over 5 ha, has TIME BOX pavilions presenting everyday Roman civil and military life and excavation info.