Ok, the uber-American brand-new malls and skyline aren't the entire picture. We saw some much older commercial streets that look like they were built in the '80s! We hear this is where the foreign laborers shop.
And then there are some actual old things, such as this Ottoman-era fort.
Unfortunately, we couldn't go in, because it was (unsurprisingly) closed for construction, as was the Qatar National Museum.
The Souq Waqif, in its present incarnation, is new, but is on the site of the old souq, and means that all of the American-style architecture is being offset by something "Middle Eastern"-looking.