overview opening hours Business centre offers more than 60 shops, restaurants and services in two underground and two above-ground floors. It is connected with Národní třída metro station. The dominant artistic feature of the complex is almost eleven metres high moving head of Franz Kafka by artist David Černý. opening hours january—december mon—sat 8:00—21:00 sun 9:00—21:00 Billa supermarket Mon—Sat 7:00—10:00 Sun 8:00—10:00 opening hours more about opening hours opening hours january—december mon—sat 8:00—21:00 sun 9:00—21:00 Billa supermarket Mon—Sat 7:00—10:00 Sun 8:00—10:00 opening hours