SUMMER FAMILY FREE DAY NATIORAL CECH&SLOVAE MUSEUS &LIBRARY JULY 27 Bring your family and friends for a full day of free admission, 80%s themed, family friendly activities, tasty food, and music. SUMMER FAMILY FREE DAY NATIORAL CECH&SLOVAE MUSEUS &LIBRARY JULY 27 Bring your family and friends for a full day of free admission, 80%s themed, family friendly activities, tasty food, and music.