Skyscrapers are mainly built to add much-needed space to cities and urban areas, so it seems amiss that our standard for ranking them is based almost exclusively on height when that doesn’t explain just how big they really are or how much space they offer.

To better appreciate the immense scale of these structures we’ve compared the gross floor area of some of the world’s tallest buildings with easily relatable references – and to one another – revealing that taller doesn’t necessarily mean bigger.