Sets connect together to form a larger image: set A connects to B, which can also connect to C (if exists) which can in turn connects to D (when set D exists, too).
Scenic Backgrounds N gauge Suburbs Pack A ID Backscenes ID115N-A
Scenic Backgrounds OO/HO Tall Trees Pack D ID Backscenes ID149D
Scenic Backgrounds - Trees Pack B - N gauge
Outland Models Railway Colored Modern City Building Tall Apartment N Gauge
KATO N Gauge 23-433A Tall Shopping Building
Bachmann Graham Farish 42-590 Scenecraft Tall Retaining Walls N Gauge