If you ever have the opportunity to visit the Northern region of the Netherlands, be sure to visit the planetarium in Franeker in the province of Fryslân.
A conjunction of the planets occurred on 8 May 1774.
Between 1774 and 1781, wool comber Eise Eisinga built this (now oldest functioning!) planetarium in his living room, to prove that the earth wouldn't be "pulled from its orbit and incinerate in the sun when the planets would collide with one another".
It's so fascinating to see this model of the solar system is still accurate more than 230 years later.
If you ask they are more than happy to give you a detailed explanation in English in the planetarium room!
You'll also find a large collection of historic astronomical instruments, and much more.
Opening hours
All year round (except for December 25 and January 1):
Tuesday through Saturday 10:00 a.m. - 5:00 p.m.
Sunday 1:00 p.m. - 5:00 p.m.
Between 1 April and 31 October, also: Monday 1:00 p.m. - 5:00 p.m.
Entrance fees:
Adults € 4,50;
Children under 14 years € 3,75;
Seniors € 4,00;
Groups (more than 20 persons) € 3,50 p.p. read more