Topic
- Buildings28
- Lunar craters28
- Moon--Surface28
- Outbuildings28
- Fog26
- Scientific illustration26
- Charts, diagrams, etc.25
- Eclipses21
- Natural disasters19
- Solar eclipses19
- Telescopes17
- Children16
- Jupiter (Planet)15
- Rivers15
- Astronomical photometry14
- Carriages and carts14
- Scientific apparatus and instruments14
- Comets13
- Halley's comet13
- Mars (Planet)13