Berlin - We took the S Bahn to Spandau city about 1hr from our train station. Spandau, one of Berlin’s largest boroughs, has a wealth of history to explore. Its roots go back to the thirteenth century when it was founded as a medieval fortress town. Down the centuries, it has experienced many changes – and the traces are evident everywhere. The old fortified tower, which is incidentally the oldest building in Berlin, stands in the middle of the Zitadelle, a square fortress built in the 16th century. It is completely surrounded by water and is one of the most important and best-preserved Renaissance fortresses in Europe. The Citadel, the borough's most prominent historical monument, encapsulates this dynamic history and is a must-visit for anyone interested in Berlin's past. Constructed in the 16th century, the Spandau Citadel is one of the best-preserved Renaissance fortresses in Europe. Its imposing bastion walls, which are up to four meters thick, and its vaulted corrido...