In a city full of endless riches and breathtaking real estate, owning the most expensive co-operative apartment is no mean feat.

The prize for most pricey pad goes to songwriter Denise Rich, who has put her fabulous Manhattan penthouse on the market for the breathtaking price of $65 million, and RadarOnline.com has photos inside the stunning Fifth Avenue locale.

PHOTOS: Take A Look At Denise Rich’s Breathtaking $65 Million Condo