In Loop, an installation recently on exhibit in Seoul, a marble enters an elaborate circuit every five seconds, then travels around the room before vanishing into the floor and reappearing in a sea of marbles in a room below. The project, COS’s first in Asia, has universal appeal, says creative director Karin Gustafsson: “It brings back childhood memories of marble runs.” Photo 2 of 2 in Watch This Mesmerizing Video of COS's Huge Marble Run in Seoul

Watch This Mesmerizing Video of COS's Huge Marble Run in Seoul

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In "Loop," an installation recently on exhibit in Seoul, a marble enters an elaborate circuit every five seconds, then travels around the room before vanishing into the floor and reappearing in a sea of marbles in a room below. The project, COS’s first in Asia, has universal appeal, says creative director Karin Gustafsson: "It brings back childhood memories of marble runs."