Park Row, or Crime Alley, is the part of Gotham North where Thomas and Martha Wayne were killed in front of young Bruce by Joe Chill. The orphaned Bruce was comforted by the local resident Leslie Thompkins, but this single tragedy wouldn't be erased from his young mind and it served as motivation to start his long journey and crime-fighting crusade as The Batman. Every year, Bruce Wayne visits the place on the anniversary of his parents' deaths as a reminder of his life purpose.
Park Row was a societal juxtaposition, being both one of the most affluent neighbourhoods for some of the wealthiest residents of Gotham, such as Jason Blood, while also being a notorious area for poverty and criminal activity.
Years after the Waynes' murders, a new building was placed on the spot where they had been killed. The building was named The Skirley Apartments and it was the place of residence for many denizens of Crime Alley. The building would've been the crime scene for one of Maxie Zeus' blood contracts, but the crime was stopped by Batman. Eventually, Poison Ivy set up a base of operations in the infamous street, but the place was burned down during a confrontation with Batman.
Dr. Leslie Thompkins runs a free clinic, funded by Bruce Wayne, out of Crime Alley to anyone who has need of it.
After Nightwing's return to Gotham, his first mission on the city was the replacement of a broken lamp post in Park Row and he also lit up a candle in memory of Bruce's tragic past.
Recently, Park Row was reclaimed by the Gotham Authorities and the place was turned into a decent neighborhood once again with help from Wayne Enterprises.