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National Observatory

A small visitor centre and planetarium on the Hill of the Nymphs, housed in the Sina building. It combines a hands-on geoastrophysics museum, a historic library and several nineteenth- and twentieth-century telescopes. The site also offers clear views across Athens, including the Acropolis from the hill.

Quick Facts

Opening Hours

SunClosed
MonClosed
TueClosed
WedClosed
ThuClosed
Fri18:30 - 20:00
Sat18:30 - 20:00

Highlights

  • Guided tours that explain the observatory’s history and instruments, plus opportunities to look through telescopes under the dome or on the lawn.
  • Exhibits include early optical telescopes, a meridian refractor and historic scientific instruments.
  • The site is compact, family-friendly and well suited to anyone curious about astronomy and navigation history.

Contact Info

+30 21 0349 0000

https://www.noa.gr/calendar/?location=ke_thisio

Λόφος Νυμφών, Athina 118 10, Greece
Get in touch
+65 6252 6822

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