camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Northfield Public Library, Minnesota
camera_obscura [busy]:
Carleton College - Goodsell Observatory
camera_obscura [busy]:
Carleton College - Goodsell Observatory
camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Academy of Natural Sciences
camera_obscura [busy]:
Academy of Natural Sciences
