y first impression of that pic is that’s the place in France where somebody on the patio of restaurant caught John F. Kerry (who served in Vietnam) negotiating with representatives of Iran ... but this is a different photo + view - presumably this one comes courtesy of the “Q” team who were monitoring? I’m going to try tin-eye on this one
Here is where that photo came from: https://www.thegatewaypundit.com/2018/05/photos-emerge-of-iranian-officials-who-met-secretly-with-john-kerry-in-paris-on-saturday-one-is-identified/