You can see that it goes in, and there's sort of a pyramid or a triangular shape.

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Mr. Hollein's father designed Frankfurt's Museum of Modern Art, which is known to locals as the "pie piece" for its tall, triangular shape.

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The design, a more radical triangular wing-body shape, combines the plane's fuselage with the wings and has no tail.

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This is the vital triangular relationship which will continue to shape peace and prosperity in the Asia Pacific.

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