challenge: Where can a model of the Śnieżka High-Mountain Observatory be found?
  
  A. In the Miniature Park of Lower Silesian Monuments in Kowary
  B. In the National Museum of Lower Silesia
  C. In the Warsaw Science Museum
  D. In the Tadeusz Hołdys High-Mountain Meteorological Observatory on Śnieżka
  Answer: 