Comoros
waterfalls
Estonia
Botswana
kids' activities
tropical
Northern Mariana Islands
nordic skiing
Anguilla
islands
sightseeing
North-America
Waurika
Fasta Åland
high altitude
South-America
🔍
astronomical observatories at Zollikerberg, Switzerland
Urania Sternwarte
6km
wikipedia
website
Bülach Observatory
28km
wikipedia
website
Eschenberg Observatory
29km
wikipedia
website