Casa de las Conchas, Salamanca, UNESCO World Heritage Site, Castile and Leon, Spain, Europe

salamanca courtyard architecture historical site spain columns fountain unesco stonework heritage travel tourism culture landmarks european history attractions medieval ornate design local art spiral staircase central courtyard decorative motifs cultural site historic buildings architectural details visiting salamanca spanish architecture cultural heritage historic places unesco sites architectural heritage historical architecture tourism destinations exploring history visitors center restored buildings beautiful architecture art history casa las conchas world site castile leon europe