How can one transform a collection of concrete tubes into a site for experiencing contemporary culture?

That was the question posed by British architect and artist Thomas Heatherwick of Heatherwick Studio, whose imaginative designs can be found everywhere from Manchester to Shanghai. Heatherwick is used to creating striking sculptures on a grand scale, but his latest proposal is larger than any before—he plans to carve an art museum from the depths of an old silo in South Africa's capital city, Cape Town. The building is a monumental sculpture in itself, and Heatherwick's challenge was twofold: protect and celebrate the heritage of the city's industrial past while simultaneously creating something wholly new within the inherited structure.

Rendering of Heatherwick's silo-to-museum transformation. Image via Dezeen.

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Rendering of the exterior view of the museum. Image via Metalocus.

"Our thoughts wrestled with the extraordinary physical facts of the building," Heatherwick explained at Design Indaba 2014, where he unveiled the plans for the new V&A Museum in Cape Town's historic waterfront district.

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"There is no large open space within the densely packed tubes and it is not possible to experience these volumes from inside," he continued. "Rather than strip out the evidence of the building's industrial heritage, we wanted to find a way to enjoy and celebrate it. We could either fight a building made of concrete tubes or enjoy its tube-iness."

In terms of technical archi-speak, "tube-iness" isn't the most shining example, but Heatherwick's point is clear enough. By carving away at the lower reaches of the silos and allowing light to stream down from above, a cave-like condition is created. The remaining concrete tubes appear suspended above the void, their vertical elements flowing like stalactites to the gallery floor.

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Interior rendering of the V&A Museum in Cape Town. Image via Fast Company.

In addition to the atmospheric qualities, the manipulation of the silo's cylinders also provides practical benefits: an uninterrupted space is created in which people can gather and large artworks can be displayed, in a manner akin to the atria of conventional galleries (think of the central void of the Guggenheim in New York, or the Turbine Hall in London's Tate Modern).

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Silo conversion provides architects with tremendous spatial and material challenges, and Heatherwick's solution appears admirable. How have other designers responded to the "tube-iness" test? Here are a few more examples of silo transformations.

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Mill Junction, Johannesburg, South Africa

Just a few hundred miles northeast of Heatherwick's museum, silos have been adapted in a very different manner. Last month, Matt Shaw reported for Architizer on Johannesburg's Mill Junction student dormitories, which combine two industrial typologies—shipping containers of every conceivable color stacked atop 11-story grain silos. The transient nature of the crates contrasts with the stable forms of the cylinders beneath, creating one outlandish residential high-rise.

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Gemini Residence, Copenhagen, Denmark

MVRDV proved that silo conversions don't always have to be as rugged as Mill Junction. Their Gemini Residence features glossy, high-end apartments radiating from a pair of concrete silos that act as twin cores. The silos contain staircases, elevators and common spaces such as terraces, while the apartments provide a glittering outer skin—complete with the lengthiest wrap-around balconies imaginable.

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Climbing Center, Amsterdam, Netherlands

In 2011, the city of Amsterdam held a competition for the best re-interpretation of three abandoned sewage treatment silos, prominent landmarks in the city's Zeeburg District. One of the most compelling projects was submitted by Amsterdam-based firm NL Architects, who proposed to transform two of the silos into an undulating pair of climbing towers. In addition to climbing areas both inside and outside the silos, the design included multipurpose areas, offices, restaurants, and other commercial spaces.

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Skydiving Center, Warsaw, Poland

If the thought of climbing the outside of these towering concrete structures appeals to you, try this one on for size: last year, MOKO Architects proposed the conversion of an abandoned cement silo into an indoor skydiving center. A scuba diving training well is also incorporated into the plan, taking advantage of the huge ten-story void within the concrete shell. MOKO also took a leaf out of the Mill Junction book of upcycling—they proposed attaching shipping containers to provide further space for cafes, an exhibition space, changing rooms and a hostel.

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329 prepared dc-motors, cotton balls, toluene tank, Dottikon, Switzerland

In less capable hands, this project could have been a science experiment gone really, really wrong. But in the hands of Swiss artist Zimoun, simple objects transform an empty chemical tank into a mesmerizing soundscape. This immense, permanent installation is comprised of cotton balls attached to evenly distributed DC motors that endlessly oscillate inside the tank to produce an echoing drone akin to white noise. As with most contemporary art, the result engenders incredibly polarized views: some find the noise meditative, others find it maddening. Watch the video and decide for yourself

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Read more at Architizer.