At first glance these photographs might look like part of a futuristic space station.
But on closer inspection you'll see that they are in fact skyscrapers photographed from ground level.
And they aren't any old skyscrapers: the photographs are taken around Hong Kong.
Photographer Romain Jacquet-Lagreze has produced a book called Vertical Horizon which focuses on the city's growing skyline.
"This book is like a contemplative dive into the raw nature of Hong Kong and an expression of its vertical elan," he says.