PITTSBURGH (KDKA) — Buildings in Downtown Pittsburgh will light up orange for the 100th anniversary of Easterseals, a nonprofit healthcare organization.

Easterdeals provides services for Americans living with disabilities.

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(Photo Credit: KDKA)

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The County Courthouse and City County Building turned orange Sunday, and the Gulf Tower and Koppers Building will be orange Monday to celebrate the organization’s milestone anniversary.

(Photo Credit: KDKA)

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Dozens of other buildings and landmarks in the United States and Canada, such as the Empire State Building and Niagara Falls, are also turning orange.