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Chicago, IllinoisIn honor of the city’s annual St. Patrick’s Day Parade, the Chicago River is dyed green at 9 a.m. on the morning of the parade—always held the Saturday prior to or coinciding with the holiday. (See Chicago like a Nat Geo Explorer.)

Photograph by Raymond Boyd/Michael Ochs Archives/Getty Images

Colorful St. Patrick's Day celebrations around the world

From the London Eye to the Great Pyramids, see iconic landmarks turn green in honor of St. Patrick’s Day.

ByNational Geographic Staff

March 13, 2019

Every year on March 17, people around the globe celebrate Irish culture and heritage with food, drink, and lively parades in honor of St. Patrick’s Day. From the emerald waters of Chicago River to the lights of the Sydney opera house, see how these 10 cities transform their landmarks for this beloved holiday. (17 pictures that transport you to Ireland.)

(St. Patrick's Day Facts: Shamrocks, Snakes, and a Saint)

This article was originally published in 2016 and updated in 2019.