We asked Scientific American readers, as part of our special issue on cities coverage this month, to send us pictures they took of a science or engineering infrastructure scene outside their windows that illustrated the best or worst aspect of life in their city.

The first offering came from Netia McCray—a view of Belo Horizonte, Brazil, which, McCray tells us, reveals "astounding architecture and construction in unusually difficult terrain. Some are shacks, others luxury hotels." She took this photograph on June 22, 2011.

Belo Horizonte, built on several hills, is the largest city in Minas Gerais, a state in southeastern Brazil.

Want to join in? Send your photograph, a description of how it illustrates the best or worst aspect of life in your city and the date it was taken to submit@sciam.com.