Marblopolis: the world's largest marble run takes over nijmegen

Get ready for a mesmerizing display of physics and engineering as Marblopolis, the largest marble run in the world, takes center stage in Nijmegen, Netherlands. Spanning a whopping 349 meters with 30 attractions, this intricate system of tunnels, loops, and halfpipes is a marvel to behold.

Marbles galore, chaos controlled

What sets Marblopolis apart is its capacity to handle an astonishing 400 marbles at once. The result is a symphony of collisions, near misses, and unpredictable trajectories, making each run unique, even when captured on video.

Conceived and built by a team of skilled creators over 360 hours, Marblopolis is a testament to human ingenuity and creativity. Combining Lego, K'NEX, and custom-designed elements, this massive structure stands at 7.30 x 2 x 1.80 meters, ready to captivate audiences until summer 2026.