For more than two centuries, blocks of marès — the soft golden sandstone that builds almost every wall, church and farmhouse on Menorca — were cut out of the ground here at Pedreres de s'Hostal, just outside Ciutadella. The quarrymen worked downwards rather than up, slicing the stone away block by block until they had carved vast open-air chambers and canyons into the earth: a kind of architecture in reverse. Two distinct quarries sit side by side. The older one was cut entirely by hand, leaving soft, organic, irregular walls; the newer one was worked by machine, leaving sheer straight cliffs that rise like the sides of a roofless cathedral.
When quarrying stopped, the site was destined to become a landfill. In 1994 a group led by the sculptor and landscape artist Laetitia Sauleau began rescuing it instead, and in 1997 it was declared a Bien de Interés Cultural — a protected Spanish cultural-heritage site. Volunteers and the Fundació Lithica that grew out of the project slowly turned the abandoned pits into something extraordinary: the old hand-cut quarry has been planted as a series of green rooms — botanical gardens, a medieval-style orchard, and labyrinths of stone and hedge that you walk down into rather than across.
The result is one of Menorca's quietest and strangest places. You descend from the bright Mediterranean light into cool stone canyons, follow paths between citrus trees and aromatic herbs growing where stone was once hauled out, lose yourself briefly in the maze, and sit in an amphitheatre carved straight from the rock, prized in summer for its acoustics. It is not a beach, a fortress or a museum — it is a contemplative landscape, best given a slow hour and a half to two hours rather than a quick photo stop. The ticket is open-dated: choose your day, arrive during opening hours, and walk straight in.