Then there is the Scrovegni Chapel, with one among the most important cycle of frescoes in the world, completed in 1305 by Giotto, and the Palazzo della Ragione, with a wide hall on the upper floor famous for its large unsupported roof.
Last, but not least, the Botanical Garden, which was included among the World Heritage Sites of the UNESCO in 1997. [The images below were taken in March 2007.]