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19 Episodes 2000 - 2000
Episode 1
Episode 2
Tries to solve the enigma of a little-known Pre-Columbian civilization: the Nasca. The gigantic geoglyphs engraved in the soil of the Peruvian Pampa, never cease to intrigue explorers and archaeologists. In Autumn 1998, two passionate archaeologists, Giuseppe Orefici and Egle Barone-Visigalli decided to undertake an impressive excavation campaign on the huge site of Cahuachi in an attempt to solve the mysteries of this little-known civilization.

Episode 3
Episode 4
50 mins
Hidden deep beneth the Earth's surface lie one of the most destructive and yet least under-stood natural phenomena in the World. Super Volcanoes. One of the largest Super volcanoes is in Yellowstone National Park in the USA.

Episode 5
Episode 6

Episode 7

Episode 8
Episode 9
Sat, Sep 30, 2000
Episode 10
Episode 11
50 mins
Episode 12

Episode 13
Episode 14
1947, a British civilian version of the wartime Lancaster bomber took off from Buenos Aires airport on a scheduled flight to Santiago, but never made it. Instead it vanished when it was apparently just a few minutes from touchdown.
Episode 15

Episode 16
Episode 17

Episode 18
Horizon examines supermassive black holes and the recent discovery that they are crucial to the formation of galaxies. Supermassive black holes were originally hypothesized to explain active galaxies and quasars, but later were discovered to be at the center of many ordinary galaxies including our own.

Episode 19
52 mins
A boy whose penis was burnt off when a circumcision goes wrong is turned into a girl as an attempt to prove a theory about gender identity.