Did another Detroit daytrip. The People Mover is cool (kind of monorail-type thing, but not actually a monorail). It flies over the city in a cool way, and some of the stops open up into buildings including the casino. They are filming Transformers 4 in a massive downtown set, and the People Mover flies you directly over it

. Didn't have a camera, but here's an online pic:
That's just a tiny part of the set, and that's the People Mover track running right through it. Film seems to be set in Hong Kong I think. Surely Detroit is the only major western city that can just shut off a huge part of its downtown area without it causing too much disruption? Plenty of jokes about people not realising it is a film set, etc.
Still of the opinion that it is an exciting, underexplored place. The DIA for example is a world-class gallery with a spectacular centre-piece (Rivera's Detroit Industry Murals detailed below) :
But one thing about it is that, because of the population vacuum, you can wander around the galleries in an uncrowded, unhurried manner. Where else can you get a Van Gogh or a Picasso to yourself for half an hour or so?
Comerica Park is a wonderful piece of modern Americana. Studded with huge weird Tigers and giant baseball bats. The panoramic below is pretty much useless for illustrative purposes, but captures the vibe well: