I was particularly fascinated with the patterns on the slate roof.
This photo doesn't begin to capture the beauty of the many leaded glass windows in the cathedral. (Be sure to click on the photo to see a larger version with more detail.)
Within the cathedral is the chapel where Saint Wenceslaus is buried. When I was there eight years ago, it was possible to enter the chapel. Now one can only peer inside.
There are many signs and symbols that decorate the walls of the cathedral.
The Romanesque Basilica of Saint George is also located within the castle and is the second oldest church in Prague. It was founded in 920. Its physical appearance has changed many times through the ages. Today its vibrant colors stand in stark contrast the dark stone of the cathedral.