Are the attractions at Ostia Antica open on Mondays? That is when our schedule permits.
The site is closed on Mondays. There are no "attractions" at Ostia Antica. It's the ruined port city of Rome, much like Pompeii is a ruined city. Hopefully, you can change around your schedule to fit it in as it makes a wonderful day trip to take. Donna
I'll second what Donna says. Find some way to move your schedule around. It's a fascinating site to visit. (Good for you for asking in advance instead of just showing up!)