The addictive puzzle known as Rubik's Cube isn't just a 1980s icon. It has also become a major inspiration for architects. Here are buildings that look like large-scale versions of the famous twisty box — sometimes by design, and sometimes just by happy accident.

A Cube as a staircase in Disney's Pop Century Resort

(via Jenn)

Stadtbücherei (City Library) in Stuttgart, Germany

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(via Home Designing and ArchDaily)

A 10-floor building covered with colored doors in Seoul, South Korea, designed by Choi Jeong-Hwa

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(via Luxuryshoppers)

A planned Rubik's Cube-shaped museum in Budapest, Hungary

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(via tervlap)

A Local Authority building on The Mall in Waterford, Ireland

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The rotating XS House in Cambridge, Massachusetts

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(via ArchDaily)

This office building in Amsterdam, The Netherlands

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(via Tartanau/DeviantArt)

The Children's Gallery at the Melbourne Museum, Melbourne, Australia

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Discovery Science Center, Santa Ana, California

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(via New Santa Ana and TripAdvisor)

This building in Milan, Italy

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(via Stefano Bertolotti)

The Ars Electronica Building in Linz, Austria, was converted to a playable Rubik's Cube by Javior Lloret. It was operated by a 3D-printed handheld cube, wirelessly connected to a laptop.

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(via Inhabitat)

A seven-story warehouse near Wednesbury, West Midlands, England

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(via Express & Star)