Here in the US, we tend to think something like a 200-year-old barn is "old." Then someone makes a discovery like the one a construction crew in Madrid, Spain, recently unearthed, putting that barn in perspective.
A construction crew working on a forthcoming flagship Apple Store at number 1, Puerta del Sol in Madrid have come across the remains of what appears to be a 15th century hospital. The site was formerly the location of a hospital that was demolished in 1854 to make way for a square. While the ruins will be covered back up, the floor will be outlined to mark their presence, and a plaque will explain the outline.
As of this time, it's not known if the marking or the plaque
