Curious Expeditions:
Double Seiss Astrograph from 1928 ll
Curious Expeditions:
Double Seiss Astrograph from 1928 - detail
Curious Expeditions:
Double Seiss Astrograph from 1928
Curious Expeditions:
A Globe of Mars
Curious Expeditions:
Astronomical Sundial Wall
Curious Expeditions:
Milan Rastislav Štefánik
Curious Expeditions:
The Štefánik Observatory