San Zeno Cathedral is located in Piazza del Duomo of Pistoia ( Dome Square ).
The Cathedral is one of the buildings you can't absolutely miss if you're spending a holiday in Pistoia.
Its facade is in romanic style like several other churches in the city that were built in the same historical period. ( San Bartolomeo and Sant'Andrea ).
San Zeno and San Jacopo are the two patron saints, indeed their statues can be found at the top of the facade.