Cambridge firefighters participate in challenge to remember 9/11 victims [Video]

Firefighters gathered at a Cambridge gym on Wednesday to pay tribute to the lives lost during the 9/11 terrorist attacks on the World Trade Centre in New York City.

The attacks happened 23 years ago and are still considered to be the deadliest terrorist attacks in human history, claiming the lives of almost 3,000 people.

More than 300 of them were firefighters who rushed in to try to save as many people as possible. Some firefighters who escaped from the towers are still dealing with health complications related to that tragic day.

To honour their sacrifice, firefighters set a goal of climbing 110 floors at Cambridge Crunch Fitness gym on Wednesday, mirroring the grueling task firefighters faced in New York in 2001.

Firefighters and community members stood shoulder to shoulder on a series of stair climbing machines during the challenge. Many of them strapped on weights while completing the physical …