The Henry Ford Museum takes you into America's history. Check out the different cars, trains, agriculture, etc from the past. The museum is large so plan for 3 hours to see everything! This is outside of Detroit, approximately 20 minutes.
The Belt is a close walk from Greektown and has multiple bars depending on your preference. The Belt showcases murals throughout the alley. If you are looking for a club, check out the Neyon Bar "Deluxx Fluxx" (its great for photos!). If you are looking for a casual drink, check out "Stand By" or "The Skip".