All roads lead to the Duomo. This is probably the most important
thing to know about Florence, the heart of the Renaissance. For
one thing, you're going to get lost. Often. For another, no matter
where you try to go, you're going to find yourself at the Duomo.
The Florence Art Guide is a great Web site that lets you explore the city of Florence and the treasures therein.
If you're looking for a place to stay in Florence, here's a link for the Hotel Lombardi. It's about a block from the train station. The proprietor, Domenico Ernandes, and his wife, Joanne, are gracious, friendly, and helpful and went out of their way to make our stay even more pleasant.