I'm bullish on what's left of Detroit's pre-war rowhouses and multi-family housing stock.
For instance, this rowhouse last sold for $13K:
https://www.zillow.com/homedetails/6...88518980_zpid/
But it's about a mile from this area, where row houses sell for +$200K:
https://www.zillow.com/homedetails/6...83772356_zpid/