Reddit mentions of The Contract with God Trilogy: Life on Dropsie Avenue (A Contract With God, A Life Force, Dropsie Avenue)

Get the full trilogy. It is incredible.

Since you mentioned you're looking for books featuring DC's magical realms, Neil Gaiman's Sandman series (Books 1-10, Endless Nights & Overture specifically) is not to be missed.

They're easily among the best comic storytelling that exists in the medium, everyone owes it to themselves to read it!

EDIT: Just wanted to add a few more recommendations that came to mind, all of which are well worth anyone's time:

• The Contract with God Trilogy - Will Eisner
  
  
• Daytripper - Fabio Moon & Gabriel Ba
  
  
• The Books of Magic - Neil Gaiman
  
  
• Black Orchid - Neil Gaiman
  
  
• Planetary - Warren Ellis
  
  
• Doom Patrol - Grant Morrison
  

Take a look at Will Eisner's Contract With God trilogy. It's different in some ways from the ones you listed, but shares a lot of the same sensibilities. Not to mention it's a major part of comic book history.

EvilPants is right, The Spirit is what he's most famous for.

Also, he pretty much created graphic novels as a medium with The Contract with God Trilogy

Here's a list of my personal favorites:

• Daytripper
  
• Maus
  
• Persepolis
  
• Blacksad
  
• Spaceman
  
• The Conract With God Trilogy

Here's three that I can think of that haven't been mentioned yet.

The Contract with God Trilogy by Will Eisner (528 pages)

The League of Extraordinary Gentlemen (Omnibus) by Alan Moore (416 pages)

Nausicaa of the Valley of the Wind (Two Volume Box Set) by Hayao Miyazaki (1104 pages)