Regard de la Lanterne Garden

The stone structure you are approaching, the Regard de la Lanterne, serves as the primary inspection point for a medieval hydraulic system that once breathed life into the city. Built between 1583 and 1613, the building acts as a portal into the ancient Belleville aqueduct, a network of underground channels that captured spring water from these heights to supply the eastern districts of Paris for centuries. While the name might sound like it relates to the city's later street lighting, it actually describes the structure's own lantern-topped roof, which was designed to provide ventilation and light to the workers descending into the basin below.