Hue used to be the capital city, but was largely demolished in the war. I didn’t think much of Hue, and only stayed a few days, but I did tour the Demilitarized Zone (DMZ). There’s almost nothing left there–the tour took on a degree of the surreal at times, as an “American army base” listed on the tour itinerary turned out to be a single rusty tank by the wayside. Scavengers have taken away almost all the metal.
Hue is actually spelled with an accent over the e, and is pronounced roughly “Whey”.