Lori Nix and Kathleen Gerber create dioramas depicting a world without humans.
Their ongoing series "The City" imagines a parallel universe where humankind is extinct and nature has started to reclaim the land.
"I want to encourage people to really think more about the world around them, and the difficulties we as a species are facing," said Nix.
Nix and Gerber started the project in 1999.
Each diorama takes between seven to 15 months to build.
The duo have since created about 30 scenes to date.
Nix designs and builds the overall architecture of the dioramas, and photographs the finished products.
Gerber furnishes the miniature spaces, sculpting all of the tiny props found inside.