Because there's no place like home.
He's taken about 200 images of various housing estates and buildings in Hong Kong.
The result is remarkable.
Stewart photographed the building at different exposures so, when the images were combined, the night sky showed brightly and the windows weren't blown out.
next slide will load in 15 secondsSkip AdSkip AdEach image is actually a compilation of three to six pictures stitched together in Photoshop.
He shot these images with a wide-angle lens in order to exaggerate the viewer's sense of scale.
"My only hope is that people can appreciate the beauty of these structures from the outside without drawing unknown conclusions about the inside," Stewart said.
With his Canon 5D in hand, he wandered the streets of Hong Kong in search of more understated residential high-rises to photograph.
"I knew I wanted to explore a different side of Hong Kong away from the large skyscrapers in the [Central Business District]," Stewart said.
next slide will load in 15 secondsSkip AdSkip AdThe positive response to the image of the Yick Cheong Building overwhelmed him.
He snapped a photo from the ground looking up (pictured) and shared it to social media. It was seen by more than one million people around the world, according to Stewart.
One day on a walk in 2013, he encountered the dilapidated Yick Cheong Building in Quarry Bay. It looked like a thousand colorful blocks stacked on top of each other.
His series "Stacked" captures Hong Kong's high-rises like you've never seen them before.
"There is so much to see here that keeps me active as a photographer," Stewart told Business Insider in 2015, "and continually inspires me for new ideas and projects."
next slide will load in 15 secondsSkip AdSkip AdPhotographer Peter Stewart fell in love with Hong Kong almost as soon as he arrived.