Natural Layers

Visitors ascend through the ecosystems on a series of gradual ramps. The skyscraper’s design lacks the vertical beams and horizontal concrete slabs typically found inside a building, so these gradients also provide an element of structural support.

Synched Climates

Ecosystems flow gently into one another, thus avoiding the climate-control nightmare of, say, going from African savanna straight into an Antarctic glacier. Instead, similar climates, such as a jungle and a swamp, abut one another.

Inner Workings

For visitors who want to quickly jump levels, staircases and elevators nest in a 33-foot gap between the building’s facade and the interior ecosystems. Utilities, such as HVAC and power systems, hide beneath the glacier, desert, and river levels.

Isolated Views

The all-glass building lets in sunlight, so there’s no need for artificial lighting. But a synthetic coating gives the glass a foggy appearance, which obscures the urban jungle from the indoor one.

Ample Headroom

Ceilings range from 98 feet in the desert to 197 feet in the grassland to 295 feet in the mountain range (to accommodate its towering peaks). This open space makes the landscapes feel more natural, says Pudo.

H20 Cycle

Water moves through the tower from top to bottom. It melts off a glacier and flows into a river, which drops down over a waterfall and percolates into a swamp before making its way into the ocean below. This article was originally published in the October 2015 issue of Popular Science, under the title “Tour the Natural World in a Single Tower.”