Former New York City Mayor Ed Koch has died. The 88-year-old passed away in a Manhattan hospital at 2 a.m. His spokesperson says he died of congestive heart failure. Our Grace Rauh takes a look back at his life.

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Ed Koch, the scrappy former mayor who led New York City through some of its darkest days in the late 1970s and 1980s, has died.

The former three-term mayor passed away at 2 a.m. Friday from congestive heart failure at the age of 88, a spokesman said.

His funeral will be Monday at Temple Emanu-El in Manhattan.

Koch, who had been in and out of the hospital in recent weeks, was admitted to New York Presbyterian Hospital on Monday with fluid in his lungs. He was moved into the hospital's intensive care unit on Thursday afternoon after suffering from shortness of breath.

A similar problem landed him in the hospital for a week last month.

As of late Thursday Koch was conscious and not on a respirator.

Koch had long been open about his health problems. While in his third term as mayor, he suffered a stroke. After leaving office in 1989, he had a number of medical issues, including a heart attack in 2000 and major heart surgery in 2009.

The city's 105th mayor maintained a positive outlook until the end. After leaving the hospital last Saturday, he sounded eager to return to work.

"Delighted to go home," he said. "There is nothing like home. I mean, this is a second home, but there's nothing like home. I expect that I'll be in the office in the beginning of the week."

Plans call for Koch to be buried in Manhattan's non-denominational Trinity Cemetery.