The town hall square is one of Toledo’s main public spaces, a meeting place for citizens and a destination for visitors the city. The square is flanked by the huge Gothic cathedral built between the thirteenth and fifteenth centuries on the site of the Moorish Great Mosque, the Archbishops palace and the Ayuntamiento, the Town Hall.

In the lower part of the square in front of the town hall, Iglesias made a dramatic cut into the surface of the square. It seems as if an ancient aquifer or subterranean channel has been uncovered beneath the stones. Water courses over the cast metal forms of a huge bas-relief, some twenty-five meters in length, and then gradually ebbs away. When full and still, the basin becomes a mirror which reflects and destabilises the normally imposing architecture.

The cycle of water runs for around 30 minutes.