Understanding Chicagohenge Header Image: Chicagohenge as seen from West Adams Street. Image Credit: Tim Hara Update: This blog was originally published in 2020 and written by Bianca Anderson. It is revised each year with updated dates of Chicagohenge and the equinoxes. It is almost that time of year when nature and architecture harmoniously come together to create the phenomenon known as Chicagohenge. For those who don’t know, Chicagohenge occurs twice a year and happens when the Sun directly...