What sets Hegra apart from most rock-cut necropolises of the ancient world is not simply the number of tombs, more than a hundred surviving facades carved into the sandstone outcrops around the site, but how precisely many of them can be dated. Nabataean tomb owners at Hegra commonly had an inscription carved directly into the facade recording the owner's name, sometimes their occupation or family, and the regnal year of the current Nabataean king in which the tomb was completed, a level of documentary care unusual among ancient funerary monuments and one that lets modern scholars build an unusually precise chronology of the site's use, running from roughly the first century BCE into the first century CE. Some inscriptions go further, laying out legal penalties for anyone who might later violate or repurpose the tomb, effectively functioning as inscribed property deeds meant to protect the burial in perpetuity.
The tombs' facades themselves borrow architectural vocabulary from several neighboring traditions at once, drawing on Egyptian, Mesopotamian and Hellenistic-Roman decorative elements and combining them into a style recognizably Nabataean rather than a copy of any one source, the same eclectic visual language that produced Petra's far more famous facades to the north. Hegra's tombs, less visited and consequently far better preserved than Petra's more exposed and heavily trafficked monuments, offer some of the clearest surviving evidence anywhere for exactly how that shared Nabataean style was carried out consistently across the kingdom's different cities rather than being unique to its capital.