The World's Tallest Indoor Waterfall at Changi Airport


Singapore’s Changi Airport extension boasts seven stories tall indoor waterfall called The Rain Voltex.

The Rain Vortex pumps 500 000 litres of rainwater through the roof of the Jewel building.

The project was designed by Safdie Architects with Landscape architecture by PWP Landscape Architecture.

“The Jewel toroidal inverse dome creates a new kind of spatial experience, a daylit vast landscaped garden, combined with seven levels of shopping and airport facilities,” said Moshe Safdie, founder and principal of Safdie Architects. “Light penetrates everywhere, while the roof drains through the dome to create a dramatic waterfall, dropping seven storeys to the lowest building level.”

changi airport singapore design

“An eight-acre garden over interior retail space integrates unexpected features that will attract adventurers of all ages,” explained PWP Landscape Architecture. “Gardens terrace down nearly 30 meters to a central gathering space with informal amphitheatre seating.

“Restaurants and cafes, as well as an event plaza, can all be accessed from within the garden. Visitors can experience a light and water show at the centre of the building, where water and captured rainfall from the roof becoming a projection screen.”


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