Security set in iron

You can rest assured behind these iron gates, not only aesthetic but also safe and secure. Security done well in Florence.

Ornate iron dragons

Medieval Siena has dragons, cast iron dragons scattered about on building facades. Some are street lamps, some were used to tie up  horses. This one however hanging from the corner seems to have no such purpose other than to serve as ornate decoration. My favourite part is that this dragon still remains chained to the building centuries later.