Barcelona baby drop-off, 17 Carrer Ramelleras, Barcelona, Spain

An unusual sight can be seen in the centre of the El Raval district of Barcelona. What was originally the House of Mercy still has an unusual wooden turntable. While the circular turntable in the wall looks purely ornamental, it was here that destitute families placed their babies, allowing them to anonymously turn the baby around to a staff member inside the home. The 16th-century building was in operation until the 19th century and sadly many hundreds of babies entered the orphanage this way.