The entrance hall contained 28 stained glass windows by national artist Janko Alexy, the floor in the hall was made from unique colored marble from near Lučenec, the first floor above contained a monumental painting Dožinky by academic painter František Gajdoš.

This institution was a lone representative of its kind in the city, uniquely among European capitals, Bratislava lacks both an observatory and a planetarium.

PKO was the main location in Bratislava for organizing dance class graduations ("venček") with ballroom (standard) dance classes being widely attended during the first half of high school in Slovakia, as well quite popular for organizing school proms ("stužková") and high-school freshmen parties ("imatrikulácie").

For me, as a musician, PKO is a palace comparable to Lucerna in Prague, Royal Albert Hall in London or Madison Square Garden in New York.

To perform there and sell it out has always been the highest aspiration of local musicians.An investor constructing a new planetarium, media library, square and the promenade with a pier on the site, in addition to flats and office spaces, which will be part of the River Park 2 project.