Plan your visit to Entheon at CoSM! CoSM and Entheon is open to the public every Friday, Saturday, & Sunday from noon - 6pm for self-guided touring. Admission: $20 General Admission / FREE for CoSM Members. JUST ANNOUNCED - FIRST FRIDAY OF THE MONTH: FREE ADMISSION TO ALL! Available at the door: $18 Seniors (65+) & Veterans, $12 Students, $12 Visitors with disabilities (free admission for accompanying care partners), $5 Children (5-11 years), FREE for members and children under 5. Kindly plan your visit accordingly, allowing at least 2 hours for a comprehensive experience.