Fodor's Expert Review Cattedrale di Santa Maria Assunta

Aosta's cathedral dates from the 10th century, but all that remains from that period are the bell towers. The decoration inside is primarily Gothic, but the main attraction of the cathedral predates that era by 1,000 years: among the many ornate objects housed in the treasury museum is a carved ivory diptych from AD 406 portraying the Roman emperor Honorius. You can also see frescoes dating from the 11th century above the Gothic vaults. The treasury and frescoes can only be visited on weekends between 3 and 5:30 pm, or with advance reservation on weekdays (except Wednesdays) also from 3 to 5:30 pm.