1. Cattedrale di Santa Maria del Fiore
What is it: An absolute must-see in Florence, the Cathedral of Saint Mary of the Flower (or the Duomo, as it’s better known) forms the city’s centrepoint.
Why go: The famous duomo was built in the 15th century, and was the largest church in the world at the time (now it’s the third biggest in Europe, which is still pretty big). If you can face the 463 steps, it’s well worth the climb, as this is the highest point in Florence. Trust us, that view over the city’s cascading buildings is worth it. Treat yourself to a well-deserved lunch after.