The BEST episodes of What on Earth? season 3

#1 - Grand Canyon Treasure

Season 3 - Episode 1 - Aired 11/15/2016

Increase interest, due to the conflict in Ukraine, leads to the discovery of a strange white splotch in the eastern forest near the Belarus border; strange spots near the Grand Canyon may hold clues to the legendary treasure of a notorious bandit; images captured in 2014 show something that looks like an airport in the southern desert of Saudi Arabia that was not there one year before; in 2014 an engineer looking for home building locations on Oke Bay in New Zealand finds something creating a huge wake in the bay; a series of 32 spiral holes seen in satellite images near Nazca, Peru could be an entrance to an underworld; city-size chunk of ice suddenly disappears in Antarctica.

#2 - Mystery in the Outback

Season 3 - Episode 2 - Aired 11/22/2016

A giant carving of a strange humanoid creature in the Australian outback; in 2013 satellites pick up a large blob of warm water in the Pacific off the coast of north western North America, and kept growing larger; top-secret activity at Iran's nuclear facility; bright green lights illuminating the Gulf of Thailand; a series of square stone structures in the Peruvian desert appear as a spine on a mountain ridge; unnaturally blue areas over 2 miles long are seen in the Utah desert.

#3 - Curse of the Sea Monster

Season 3 - Episode 12 - Aired 2/7/2017

A strange mass breaches surface of an ocean near Antarctica, sparking rumors of a sea monster; an area of the U.S.-Mexico border becomes an international mystery; and ancient rock carvings in a remote mountain range depict weird, unearthly beings.

#4 - Dagger of Tutankhamun

Season 3 - Episode 7 - Aired 1/3/2017

A dagger sealed in King Tut's tomb that seems to have extraterrestrial origins; a massive swastika found in the desert near Roswell, N.M.; and satellites that search for a most-wanted man.

#5 - Lost Empire of the Amazon

Season 3 - Episode 15 - Aired 2/28/2017

New evidence could lead to the discovery of an unknown ancient civilization in the Amazon rainforest. An unidentified submarine is spotted in a North Korean shipyard. New evidence reveals a massive Arctic canyon buried beneath the ice; A plane is spotted on Google Earth at the bottom of a lake in Minnesota.

#6 - The Curse of Merlin

Season 3 - Episode 20 - Aired 4/4/2017

The myth of Merlin is associated with an arrangement of stones in northern France, and satellite images might finally solve this ancient riddle; investigators uncover something mysterious buried beneath the Gulf of Mexico; and a mysterious island suddenly appears off the coast of the highly sensitive border between Iran and Pakistan

#7 - Inside El Chapo's Escape

Season 3 - Episode 10 - Aired 1/24/2017

Satellite images reveal how El Chapo escaped from a high-security prison in Mexico; mysterious patterns in the Australian outback and the Sahara Desert spark a major scientific investigation; and a giant black stain appears in a war-torn area of Iraq.

#8 - Forbidden Cities of the Maya

Season 3 - Episode 19 - Aired 3/28/2017

A young boy makes international headlines when he uses satellite images to discover lost cities of the Maya; satellite images might point to a modern-day genocide; and trees in China seem to be spelling out a sinister message.

#9 - Riddle in the Ruins

Season 3 - Episode 3 - Aired 11/29/2016

Black holes near pyramids in Egypt; weather radar in Texas finds a strange pulsing object; in 2015 satellite images show two large white objects with wakes that make them appear to be moving at very high speeds; ruins in Peru that suggest the Inca people knew more than previously thought; in 2001 images of a red swarm on an Indian river bank; a dark streak in the Andean desert of Bolivia may indicate the location of a meteor strike.

#10 - Raiders of the Holy Lance

Season 3 - Episode 8 - Aired 1/10/2017

The takeover of one of Syria's most ancient archaeology sites; tanks that appear to be facing off in Antarctica next to an unworldly object; and a water reservoir in L.A. that suddenly turns black.

#11 - Siberian Hell Pit

Season 3 - Episode 16 - Aired 3/7/2017

A massive chasm appears in a remote part of the Siberian forest, and locals call it to a gate to the underworld. An island disappears, and investigators are mystified. 

#12 - Did We Find Flight 370?

Season 3 - Episode 5 - Aired 12/13/2016

A new clue about what happened to missing Malaysia Airlines Flight 370; an astronaut's sighting of something strange in the Sahara Desert; and a remote village in Alaska invaded by orange sludge.

#13 - Stonehenge of the Holy Land

Season 3 - Episode 4 - Aired 12/6/2016

Legends of ancient giants surround a mysterious monument in the Holy Land. A bright pink lake could point to a strange, undiscovered new species. When a young boy disappears in a sand dune, satellite images help with the investigation.

#14 - Strange Symbols in the Desert

Season 3 - Episode 13 - Aired 2/14/2017

An amateur archaeologist stumbles open strange symbols scratched into the Kazakhstan Desert; CIA surveillance photographs show what looks like a giant Star of David on the island of Cuba; and a lake in the Brazilian rain forest that turned bright pink.

#15 - Hunt for El Dorado

Season 3 - Episode 17 - Aired 3/14/2017

Strange images from the jungles of Colombia could lead researchers to the legendary city of El Dorado; Images of a nuclear missile launch silo in Montana are being manipulated; A bright green swirling spiral appears in the seas of the Persian Gulf. A massive complex suddenly appears secretive state of Myanmar.

#16 - Mystery of the Mummy Desert

Season 3 - Episode 18 - Aired 3/21/2017

#17 - Bloody Secret of the Lost City

Season 3 - Episode 14 - Aired 2/21/2017

A vast structure buried in the sands near the legendary city of Petra points to a bloody past; when terrorists kidnap more that 200 schoolgirls in northern Nigeria, rescuers use satellites to track them down.

#18 - The Swastika Conspiracy

Season 3 - Episode 9 - Aired 1/17/2017

A giant swastika in a German forest; a strange pattern etched into the desert near the famous Nazca lines; and mysterious markings in an isolated corner of Antarctica.

#19 - Ghost of Zorro

Season 3 - Episode 11 - Aired 1/31/2017

A giant letter Z is carved into a Mexican hillside, evoking the mark of a legendary outlaw; a strange sighting in Germany points to secrets from the Cold War; and massive, blood-red marks in China prompt fears of a violent government crackdown.

#20 - Gateway to Eden

Season 3 - Episode 6 - Aired 12/20/2016

A buried monument sheds light on a Bible mystery; an ominous shadow engulfs the Pacific Ocean; and a lake that's shaped like a perfect circle hosts otherworldly life.