With a population of over 7 million people packed into an area of 426 square miles, Hong Kong is one of the most densely populated places in the world. As with other places where development cannot expand horizontally, apartment buildings tend to get taller and taller in order to provide living space for all the inhabitants.

German photographer Michael Wolf decided to capture this population density through a series of photographs studying the architecture of these high rises. The project is titled “Architecture of Density.”

The photographs offer a closeup view, turning the buildings into mesmerizing patterns of edges, windows, balconies, and air conditioning systems. In most of the photographs, the buildings completely fill up the frame, and the repetition is disorienting.