We came across this recent blog post from The National Archives Unwritten Record Blog that show some wonderfully historic photos of the U.S. Embassy during (and after) its construction in Havana.
View Photos: Here is a link where you can view the photos.
From the blog post:
It has been 54 years since the U.S. Embassy in Havana closed its doors.
The collection from the National Archives Still Photos Division includes photos of embassies, consulates, and diplomatic residencies from all over the world. Included in this collection are a number of photos from the original U.S. embassy in Cuba.