Things to Do
Imperial Citadel of Thang Long
Beneath modern Hanoi lies more than a thousand years of continuous political history — the Imperial Citadel of Thang Long was the seat of power for Vietnamese dynasties for centuries, and is now a UNESCO World Heritage site.
Why it matters
The citadel was founded in 1010 when Emperor Ly Thai To moved Vietnam's capital to what's now Hanoi, and the site remained a centre of political power through successive dynasties, French colonial rule, and into the 20th century. UNESCO recognised it in 2010 specifically for this unbroken continuity — few sites anywhere demonstrate over a thousand years of continuous political use on the same ground.
What to see
The above-ground remains include gates, foundations, and the Doan Mon (Southern Gate), alongside an active archaeological site where excavations have uncovered layers from different dynasties. There's also a section used more recently as a military command centre during the Vietnam War, giving the site an unusually wide historical range in one place.
Is it worth visiting?
This is a site that rewards visitors with some interest in history more than casual sightseers — much of what's on show is foundations and archaeological layers rather than dramatic standing architecture. Pair it with the nearby Ho Chi Minh Mausoleum complex and Temple of Literature for a history-focused morning in the Ba Dinh area.