Technically, the Pantheon in Rome is an active place of worship (the Basilica of Santa Maria ad Martyres), and the official dress code requires modest attire. This means shoulders must be covered and garments should ideally reach the knees. In 2026, security staff at the entrance are increasingly strict about these rules. While you might occasionally see tourists in longer Bermuda-style shorts that hit the knee, very short "athletic" or "hot" shorts are likely to result in you being denied entry. To be safe, many travelers carry a lightweight scarf or sarong in their bag to wrap around their waist or shoulders before entering. It is also important to note that hats should be removed upon entry. Since the Pantheon began charging a small entry fee in 2023, the lines are more managed, and the staff has more time to enforce the decorum rules. Wearing shorts that are too short is considered disrespectful to the sacred nature of the site, regardless of how hot the Roman summer may be.