intertwined tubular forms shape inflatable rainbow labyrinth by cyril lancelin in grand rapids

Cyril Lancelin unveils pyramid curbs in Grand Rapids

At the Return to the River festival in Grand Rapids, Cyril Lancelin – Town and Concrete introduces his latest large-scale inflatable installation, Pyramid Curbs. The vibrant, immersive structure transforms the urban landscape into a playground of color and geometry, inviting visitors to step inside a three-dimensional rainbow maze.

The artwork is composed of intertwined tubular forms that rise and curve into an abstract pyramid-like silhouette. Its surface is covered in a gradient of rainbow hues, producing a dazzling visual effect that shifts with light and perspective. From afar, Pyramid Curbs appears as a monumental bundle of neon-colored roots, while up close it becomes a walkable labyrinth where visitors can explore and lose themselves between the inflated walls.

all images by DGRI, Bryan Esler, Shafi Subhan, courtesy of Cyril Lancelin – Town and Concrete

integrating sculpture, architecture, and playground

True to French artist-architect Cyril Lancelin’s practice, the work blurs the boundaries between sculpture, architecture, and playground. Repetition and variation of geometric modules create a structure that is at once monumental and approachable. The installation celebrates collectivity and joy, encouraging people of all ages to engage physically and emotionally with the piece.

Return to the River provides the backdrop for this urban intervention, reconnecting Grand Rapids’ downtown with the waterfront through art, music, and public events. In this context, Pyramid Curbs acts as both a landmark and a social condenser, a meeting point where color, scale, and form merge to reimagine how public space can feel. 

Cyril Lancelin debuts Pyramid Curbs at the Return to the River festival in Grand Rapids

intertwined tubular forms rise into an abstract pyramid-like silhouette

a rainbow gradient covers the surface, shifting with light and perspective

repetition and variation of modules create rhythm and scale

the installation merges sculpture, architecture, and playground design

visitors are invited to explore the maze-like interior

rainbow tones shift constantly with changes in light

project info:

name: Pyramid Curbs
designer: Cyril Lancelin | @town.and.concrete

location: Downtown Grand Rapids, Michigan

client: Downtown Grand Rapids Inc | @downtowngrinc / Return to the River Festival | @returntotheriver

production: ATC

photographers: DGRI, Bryan Esler, Shafi Subhan