World 1 (Super Mario 3D Land)
From the Super Mario Wiki
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World 1 takes place in a green, grassy field with flowers, pipes, hills, and blocks in the distance.
The six possible contents of this world's Mystery Box are:
Mario & Sonic at the Sochi 2014 Olympic Winter Games
The Super Mario 3D Land World 1 appears as a background for Dream Figure Skating in Mario & Sonic at the Sochi 2014 Olympic Winter Games.