- the Universe
- Inca culture
- Aztec culture
- Maya culture
- Ancient Egypt
- Dinosaurs
- Geodes and Minerals
- World War II
- the Middle East
- Tornadoes
- Volcanoes & pyroclastic flows
- Ancient Greece
- Animals
- The Templars
- Atlantis
- Tsunami's
- Earthquakes
- Fossils
- Secret societies
- Epidemics
- Shark attacks
- Plane crashes
- Orthodox cathedrals
apr 8 2011 ∞
jan 1 2013 +
jan 1 2013 +