The Adler Planetarium sundial with Lake Michigan and city skyline beyond, Chicago, Illinois, United States of America, North America

The Adler Planetarium sundial with Lake Michigan and city skyline beyond, Chicago, Illinois, United States of America, North America

Chicago cityscape from Lake Michigan, the Adler Planetarium Sundial in the foreground with Willis Tower, formerly the Sears Tower beyond, Chicago, Illinois, United States of America, North America

Chicago cityscape from Lake Michigan, the Adler Planetarium Sundial in the foreground with the Willis Tower, formerly the Sears Tower, beyond, Chicago, Illinois, United States of America, North America

Sundial sculpture at the Adler Planetarium and city skyline, Chicago, Illinois, United States of America, North America

Sundial sculpture at the Adler Planetarium sundial and city skyline, Chicago, Illinois, United States of America, North America

Sundial outside Adler Planetarium, Chicago, Illinois, United States of America, North America

Lake Michigan and Chicago skyline seen from Adler Planetarium, Chicago, Illinois, USA

Lake Michigan and Chicago skyline seen from Adler Planetarium, Chicago, Illinois, USA

Adler Planetarium sundial and city skyline Chicago Illinois USA

Adler Planetarium sundial and city skyline Chicago Illinois USA