Sonnenborgh Museum and Observatory


Zonnenburg 2
3512 NL Utrecht
Plan your route
({{distance}} {{unit}} from your location)

Explore the secrets of the bastion Sonnenborgh or climb the steps to the star cupolas, where telescopes bring the universe and stars really up close.

Unearth the secrets of Sonnenborgh. Look for cannon emplacements behind the extremely thick walls of the 16th-century fortification. Climb the stairs to the 19th-century observatory domes and gaze at the stars and planets after nightfall. Make a weather forecast or take a closer look at the sun using a special solar telescope.

Sonnenborgh; from bastion to meteorological institute and observatory!

Open: Tuesday through Sunday.

Contact info E-mail: Phone:  0031 (0)30 820 14 20 Website:  Sonnenborgh Museum and Observatory

Opening hours

  • every Mondayclosed
  • every Tuesdayclosed
  • every Wednesdayfrom 11:00 to 17:00
  • every Thursdayfrom 11:00 to 17:00
  • every Fridayfrom 11:00 to 17:00
  • every Saturdayclosed
  • every Sundayfrom 13:00 to 17:00




Accessibility Visitors with a visual impairment No facilities Wheelchair users and visitors who have difficulty walking Facilities are limited accessible Visitors with a hearing impairment No facilities Visitors with a guide dogs Allowed