Well, we need not wonder for much longer, as the Belgian architect's twisting, greenery-clad Agora Garden Tower is beginning to take shape in Taipei, Taiwan.

As we reported when construction began back in 2013, the interesting form of the Agora Garden Tower (also known as the Tao Zhu Yin Yuan) is inspired by DNA's double helix shape. It rises to 20 stories and twists 4.5 degrees at each floor, to a total of 90 degrees. Vincent Callebaut Architectures says that this twist lets residents enjoy panoramic views of the nearby Taipei 101 super-tall skyscraper.

The residential tower will also feature 23,000 trees, located both in the grounds and the balconies, which Callebaut's firm calculates will absorb 130 tons of CO2 each year. This brings to mind the award-winning Bosco Verticale.