Spiral Tower would be world's first "climate-neutral high-rise attraction"

A consortium of Dutch companies has developed a concept for a visitor attraction with passenger cabins spiralling up and down its facade and powered by solar panels and wind.
Engineers KCI, electrical specialists Bosch Rexroth, steel experts Hillebrand and creative agency NorthernLight are the four companies from the Netherlands that collaborated on the piece of conceptual architecture.
Its designers claim it will be the world's first "climate-neutral high-rise attraction".
A steel mas