+  + E ++ +P + +   ++  P+ M  F  T G + +     ++  + +  M G H B     ++  G  + + M + +    + P +  +  +  + ++                  P + P + + + +        D

D - Depot. (place to repair ship, refuel ship, and buy extra fuel)
E - Exchange (place to buy goods)
B - Bank
F - Bar (food, beer, buy/sell)
S - System Parts
G - Guns Shields and Rapidheals
H - Hotel
M - Public Teleport (within city)
T - Tube Station (city to city)
P - Secure Parking lot
+ - Building (does nothing)