Chicago-henge is back, just in time for Spring

CHICAGO (WLS) -- Chicago-Henge is back!

The vernal equinox is Saturday morning, marking the astronomical beginning of Spring, according to ABC7 Meteorologist Larry Mowry.

Twice a year, a unique phenomena called "Chicago-henge" - based off of Stonehenge - can be seen here in Chicago.

This is also the time of the Chicago-henge, where the sunrise and sunsets line up perfectly with the east-west grid of the city.

The twice-a-year treat can be seen in downtown Chicago this weekend.

You should be able to see Chicago-henge for the next few nights, but Friday's sunset and Saturday's sunrise are the best times to catch it.

RELATED: Chicago-henge: When and how to see the unique phenomena

Twice a year, a unique phenomena called "Chicago-Henge" - based off of Stonehenge - can be seen here in Chicago.

The Spring Equinox falls anywhere between March 20 and March 23.

The Fall Equinox falls anywhere between September 20 and September 23.