You might be free to wander around today, but Co Loa Citadel hasn't always rolled out the welcome mat! Learn the story behind this mighty stronghold and exactly what it was designed to defend.
You're spoiled for sightseeing choice in Dong Anh. Co Loa Citadel is a good place to start here, but there are plenty of other worthwhile places to discover. Hoan Kiem Lake, Thang Long Water Puppet Theatre, and West Lake are not far from the history-filled fortress and will round out your day nicely.