LEGO Architecture Burj Khalifa Building Instructions page 5

Architecturally, the building transforms itself from a solid
base expression to a vertically expressed middle section of
polished stainless steel projected metal fins and glass. Only
vertical elements were used here, as the fine dust in Dubai's
air would build up on any horizontal projecting elements.
© Emaar Properties PJSC © Emaar Properties PJSC
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