Six thousand rock engravings cover the limestone terraces of Gobustan National Park, carved between 40,000 BCE and the medieval period by successive waves of hunters, herders and Silk Road travellers. The site gained UNESCO World Heritage status in 2007 for its unbroken chronicle of human settlement — stone panels depict aurochs hunts, ritual dances, celestial observations and reed boats that predate Egypt's papyrus craft by three millennia. Archaeologists identify twelve distinct carving styles, from Paleolithic stick figures to Bronze Age chariots, layered across fifty-seven square kilometres of semi-desert where the Greater Caucasus slopes into the Caspian basin. Gobustan Absheron tour itineraries combine the petroglyph reserve with the region's volcanic phenomena: the Absheron Peninsula cradles over three hundred mud volcanoes, more than half the world's terrestrial total, fed by deep methane deposits that bubble grey slurry into low cones across the steppe. The largest clusters lie thirty minutes south of the rock art site, accessible via dirt tracks that wind through saxaul scrubland. Zoroastrian fire worship took root here in the first millennium BCE, sustained by natural gas seeps that ignite into perpetual flames — Ateshgah Fire Temple and Yanar Dag burning hillside preserve this tradition, their controlled vents a counterpoint to the cold mud below. The national park's interactive museum, opened in 2011, houses artefacts from fifty excavation seasons: flint microliths, ochre grinding stones, ceramic shards stamped with Kura-Araxes triangles. Vitrines trace the site's strategic importance as a Silk Road waypoint, where caravans paused to water camels at seasonal springs now marked by medieval graffiti in Arabic and Armenian scripts. Display panels explain the region's geology — the sedimentary folds that trapped Caspian oil reserves also shaped the overhangs where Stone Age artists worked, protected from wind and rain. Park rangers lead morning walks to Beyukdash summit, where a Roman inscription from Legio XII Fulminata, carved in 84 CE, marks the empire's easternmost boundary. Full-day tours from Baku depart before rush hour, covering one hundred twenty kilometres round-trip through industrial zones that yield to open steppe. The Gobustan Absheron tour route threads past Soviet-era drilling rigs and new wind farms, infrastructure that coexists with landscapes unchanged since the Holocene. Entry to the petroglyph zone requires a ten-manat conservation fee for foreign visitors, collected at the museum gatehouse where guides brief groups on the fragility of the engravings — touching the rock face accelerates erosion by transferring skin oils into porous limestone.