Yik Cheong Building Wan Chai & Northeast Hong Kong Island

Like a sci-fi set from Blade Runner, this gritty, impossibly dense and vertiginous cluster of colourful apartments is one of the most instagrammed sights in the city (especially since it appeared in a Transformers film). As a result, photography has been banned for the sake of the residents, but you can sneak a (quiet) peek by entering at 1026-28 King's Rd.