This design choice intensifies Niko Bellic’s experience: Liberty City feels vast not because it is large, but because it is slow and hostile to traverse .

| Borough | Real Analog | Dominant Landmark | Economic Class | Bridge/Tunnel Access | | --- | --- | --- | --- | --- | | Broker | Brooklyn | Rotterdam Tower | Working | Broker Bridge, Manhattan Bridge | | Dukes | Queens | Francis Intl. Airport | Lower-Middle | Willis Bridge | | Bohan | Bronx | Northern Expressway | Poor | Northwood Heights Bridge | | Algonquin | Manhattan | Star Junction | Wealthy/Commercial | Multiple bridges & subways | | Alderney | New Jersey | Plumbers’ Skyway (Sears Tower parody) | Mixed industrial | Booth Tunnel, Alderney Bridge |

A key innovation of the GTA IV map is the use of vertical space: