It is one of the most extraordinary ancient archaeological sites in Southeast Asia, albeit one that is relatively unheard of outside of Vietnam. Co Loa. A defensive stronghold that during its golden age became the beating heart of ancient Vietnam. To this day the city holds a deep national importance for the Vietnamese. It is a site surrounded by legendary tales, with new archaeological discoveries continuing to reveal more about this ancient city’s fascinating past. To talk through the history, and legends, that surround this central bastion of ancient Vietnam, I was delighted to be joined by Professor Nam Kim from the University of Wisconsin-Madison. Nam is a leading expert on the ancient history of Vietnam and has conducted excavations at Co Loa since 2005.