NY — A city inspector yesterday discovered a chamber of horrors — including animal bones and preserved organs – in the basement of a Bronx apartment building owned by a convicted sex offender, authorities said.

The inspector, from the Department of Housing Preservation & Development, was checking on a hot-water complaint when he stumbled on the ghoulish collection in the building on Holland Avenue in Van Nest.

The room was filled with skulls, bones and jars containing organs that appeared to be stored in formaldehyde, cops said.

“If these walls could talk, they’d probably be screaming,” said Dawn Jones, who lives in the building.

None of the bones and organs appeared to be human, but they were being checked out by the Medical Examiner’s Office.

Neighbors said medical equipment and rubber stalactites, the icicle-like formations found in caves, were also in the basement.

“It’s dark down there. There’s no light,” said 8-year-old Nicholas Montalvo, who moved in with his family a few months ago.

“You feel like you’ll fall through the floor.”

The building is owned by Barry Greene, 62, who plead guilty in 2001 to sodomy and sex abuse charges for luring four Bronx children to a bogus upstate camp, and preying on them.

Authorities could not say if there was a connection between Greene and the creepy discovery.