Jardi de la Infància shelter, an oval-shaped cellular shelter, was built in 1938, with a total underground area of 584,67m² that was nearly as big as the gardens above it. The 357,86m² of useable space (including corridor and steps) could provide protection for over 600 persons. For additional safety in the event of a direct bomb impact, the entire outside surface area was covered with a pyramid-shaped earth mound of about 2 metres high.