Not Allowed: Pets
Not Allowed: Shorts
Not Allowed: Weapons or sharp objects
Not Allowed: Short skirts
Not Allowed: Drones
Not Allowed: Sleeveless shirts
Not Allowed: Alcohol and drugs
Not Allowed: Explosive substances
Not Allowed: Nudity
Not Allowed: Bare feet
Not Allowed: See-through clothing
Know Before You Go: The Vatican has a dress code. Shorts can be worn but the knees and shoulders should be covered
Know Before You Go: Saint Peters Basilica is only visited from the outside