Marblopolis: world's largest marble run unveiled

A colossal marble run attraction has been unveiled in the Netherlands, measuring a staggering 349 meters in length and featuring 30 intricate tracks. Dubbed Marblopolis, this massive structure is designed to mesmerize with its complex, hypnotic design.

Marbles in motion

Watch as dozens of marbles whizz, collide and navigate through tunnels, loops, jumps and half-pipes in a mesmerizing display of physics in action.

Constructed from a unique blend of commercial building blocks like Lego, K'NEX and Quercetti, along with custom designs, Marblopolis required over 360 hours of meticulous assembly and testing.

At its core, this marvel of marble engineering is an interactive demonstration of kinetic motion, control and unpredictability - a true 'chaos controlled' experience.

Visitors can witness up to 400 marbles in action simultaneously, each following a distinct path due to the varying speeds and angles of impact. No two runs are ever the same, even when captured on video.