Instead Of Stairs, A Spiraling Ramp Was Designed For This Office Building Erin 5 years ago continue reading Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X bjarke ingels group’s marsk tower, a spiraling observation helix, officially opens to publicDateAugust 11, 2021In relation toArchitectureEFFEKT’s Spiraling Observation Tower Will Take Visitors 45 Meters Above the TreetopsDateOctober 13, 2017In relation toArchitectureEFFEKT’s Spiraling Observation Tower Will Take Visitors 45 Meters Above the TreetopsDateOctober 13, 2017In relation toArchitecture