This papercraft diorama is Marble Zone, the second Zone in the original Sonic the Hedgehog video game series, the paper model was created by Az-The-Dragon. Marble Zone is an ancient underground complex, flooded with boiling hot lava.
Above ground, grass grows over the ancient marble buildings and there are columns and statues everywhere. Below ground, however, this fire-themed level is filled with magma flows, lava pools, platforms that burn once the player steps on them but there are other obstacles including moving platforms and spiked weights that can crush the player if they are not careful while traversing through these ruins.
Certain bricks can be destroyed for points; sometimes up to 10,000 can be obtained if the bricks are destroyed in sequence. This zone also has many shortcuts and walls that the player can break through for rings and shields.
You can download this papercraft template here: Sonic the Hedgehog - Marble Zone Free Papercraft Download