They may no longer be used for repelling enemy hordes or otherwise defending the kingdom, but these castles still have their rugged good looks. This impressive fortress, located on the limestone ...

How medieval fortresses were built for war. In the ninth and tenth centuries, castles were often built of wood and easily burned down by enemies.

The castle-like Glencairn Museum in Bryn Athyn, Pa., is full of medieval artifacts, many of which are built into the architecture of the building. (Emma Lee/WHYY) Henderson turned to the Philadelphia ...