Our first site was the Reunification Palace which is analogous to our White House. The fall of Saigon occurred here (wikipedia info) when tank 843 crashed through its gates and raised the North Vietnamese flag signifying "liberation and reunification" of Vietnam.
The latter half of the tour took us into the extensive underground wartime command center of the South Vietnamese.
Next we checked out the War Remnants Museum which contains exhibits and graphic photos detailing America's use of agent orange, napalm (flammable liquids), and extensive civilian bombing during the war. The visit was a sobering view (though one sided) of the brutality of war and seeing it from the perspective of the North Vietnamese was definitely eye opening.
See more photos. Warning: Very graphic.
From here we'd catch a bus to Phnom Penh in Cambodia.