My husband and I have 25 and 16 years, respectively, of guiding experience in Rome. He's a licensed guide who leads cultural, archeological, and art tours, and I am a certified sommelier who leads food and wine tours.

When visiting Rome, tourists often make several common mistakes that can detract from their experience in the Eternal City — ranging from simple cultural misunderstandings to more serious breaches of etiquette. My husband and I often discuss some of the more frustrating things we wish guests knew before they visited.