Not too sure if this is the place to put it, but, for posterity's sake, the Pit Start was Vườn Hoa Nhà Hát Lớn. The building in the background is the Hanoi Opera House and it is adjacent to the Pitstop Hotel, the Hilton Hanoi.
Pam & Winnie were shown at Mã Mây, which is in the Tourist District(ish) of Hanoi.
.... and I'm out, until TAR's next stop in penninsular Southeast Asia! haha!