The Duomo. It was so damn impressive.

We went to:
The Accademia
San Lorenzo
The Baptistry
The Uffizi
The Duomo
The excavations under the Duomo
The Monastry of Fra Angelico
La Specola
The Boboli Gardens outside the Pitti Palace
Santo Spirito
The Duomo in Pisa
The Baptistry in Pisa
The Leaning Tower of Pisa

So a fair bit of culture in 4 days... And it was all interesting or incredible or exciting or uplifting or all those at once!