Tourists flock to the world's steepest street to create 'bizarre' optical illusions

Tourists are flocking to the world's steepest street in the coolest little city of the south, Dunedin.

from
http://www.stuff.co.nz/travel/destinations/nz/82363735/Tourists-flock-to-the-worlds-steepest-street-to-create-bizarre-optical-illusions