Willem Jansz Blaeu (1571-1638)
Le grand atlas, ou, Cosmographie Blaviane, Amsterdam, 1667
Florence, Istituto e Museo di Storia della Scienza, MED GF 034, pl. between pp. 89-90

This spectacular engraving shows the extremely advanced Stjerneborg observatory that Tycho Brahe built on the island of Hven, in Denmark. We can see the roofs of the five crypts in which he kept his most advanced instruments.