1. Visit the Imperial Citadel

This sprawling complex in Hue was where the Emperors of old would have lived and conducted all their business. There was even a part of the citadel known as “The Forbidden Purple City,” which, much like China's Forbidden City, was reserved for only the most important people in Vietnam.

Unfortunately, the Imperial Citadel today is just a shadow of what it once was. The temples, pavilions, walls, and gates were damaged first during skirmishes with the French in 1947, and then most of what was left was destroyed by American forces during the Tet Offensive (a major military campaign during the American-Vietnam War) in 1968.

Today, only a handful of buildings within the citadel still stand; at one point, there would have been more than 160.

The Imperial Citadel is still well worth a visit, though, even if the restoration process has been slow. You can still see some of the imposing city gates and walls, beautifully restored halls (like the one pictured below), and the ancient moat that's fed by the Perfume River.

2. Go to some imperial tombs

Since Hue was an imperial capital for well over a century, many of the former Emperors have elaborate tombs dedicated to them here. Most are located along the Perfume River south of Hue (meaning most survived the war), and you can make a full day of it if tombs are your thing.

Popular tombs to see in Hue include the tombs of Tu Duc, Khai Dinh, and Minh Mang.

I visited to tomb complex of Tu Duc, which was actually built between 1864 and 1867 while the Emperor was still alive. It's a sprawling complex set around a lake that the Emperor basically treated like a summer home. Tu Duc's story is a rather sad one (he died without an heir), so it's worth taking a tour here if you can.

3. Visit Thien Mu Pagoda

Overlooking the Perfume River, the Thien Mu Pagoda with its 7-tiered tower is akin to the “symbol” of the city of Hue. The complex dates all the way back to the early 1600s, though the buildings within it have been burned down and rebuilt several times since then. The current tower dates back to the mid-1800s.

Along with admiring the pagoda, you're also sure to see young monks in training here going about their duties and studies. Visit early in the morning to beat the crowds.

4. Go to a “Royal Banquet” dinner

If it's kitsch you're looking for (and especially if you're traveling in a larger group), book an evening at a royal banquet. You'll dress up like Vietnamese royalty, enjoy traditional music, and dine on traditional “royal” dishes that often come out with intricately-carved garnishes shaped like birds.

This is not something I would usually be into, but since I was traveling with a really great group on my Intrepid Travel tour of Vietnam, it ended up being an incredibly fun evening. (Plus, the food was delicious!)

If you're not traveling with a group and are looking to book one of these, the one at Ancient Hue (one of the better restaurants in the city) comes highly recommended.

5. Take a bike ride through the countryside

Lastly, if you only do one thing in Hue beyond the citadel and tombs, go on a countryside cycling tour. I love bike tours a lot because they give you such a different perspective on a new place – and it was no different in Hue.

The tour I went on had us riding through rice paddies, visiting a countryside market, and having lunch at a local family's home. It was probably my favorite part of my time in Hue because I felt like we were seeing the “real” Vietnam. (Book a similar tour here.)

This of course is not an exhaustive list. You can also take a dragon boat cruise down the Perfume River, or wade through the chaotic central market. You can even book day tours from here to the Demilitarized Zone not far from Hue that marks where the border between North and South Vietnam used to be.

Whatever you do though, don't skip Hue if you're traveling through Vietnam!