The Slide-Scraper

1. British architecture firm Bblur designed the 584-ft. (178 m) tube slide, which will be the world’s longest.

2. It will be built to spiral in and around part of the structure’s existing red helix, helter-skelter-style.

3. The ride down will take about 40 sec., meaning visitors will travel approximately 15 m.p.h. (24 km/h). It’s expected to open in spring 2016.

This appears in the August 24, 2015 issue of TIME.

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