Stream Now 
Shows
See who Surthrives Naked and Afraid XL: Next Level
GOLD RUSH: DAVE TURIN'S LOST MINE 4
Team Turin Takes a Chance on Montana Gold
Dave Turin Heads Into the Unknown in Search of the Mother Lode
Refreshing Apple Pie Moonshine Cocktail Recipe
Moonshiners Share their Favorite Memories from 130-Plus Years of Experience
1295737155
How to Make Benjamin Franklin's Lost Booze Recipe
Moonshiners Uncover and Recreate Long Lost American Spirits
DEADLIEST CATCH 18
A New Era for the Deadliest Catch Captains
NAKED AND AFRAID XL 7
Meet the Naked and Afraid XL 'Next Level' Contenders
NAKED AND AFRAID XL 7
Naked and Afraid XL Rises to the Next Level
See All Shows
DNews
482182695
New Zealand's Sea Lions Have Returned: Crashing Soccer Games, Golf Courses, and Public Pools
Spreading the Love for World Kindness Day
1212609534
Bat Pups Babble like Babies
169975455
Virgin Births: The First California Condor Chicks Born from Unfertilized Eggs
1288249952
An Amazonian Tree Sought Refuge with the Norwegian Embassy
The King of Chunks Has Been Crowned
The Ivory-Billed Woodpecker is Officially Extinct, Along with 22 Other Species
1046943480
There’s a Black Rhino Baby Boom in Zimbabwe
523709914
Bee Swarm Kills 63 Endangered Penguins
1338370513
Climate Week 2021 Shines a Light on the Climate Crisis
See All DNews
Nature
1163498728
Do You Know What the Most Trafficked Wildlife Species Is?
690066377
Meet the Animals of the Galapagos Islands
1312795294
Welcome to the World’s Largest Insect Hotel
Meet This Unique Otter Species
942638306
How Did Lions Learn to Climb Trees?
1023165484
Forest Projects Will Help Rebalance Earth’s Climate
Why are Dark Skies Important?
Photographing Dark Skies
Venturing Through Florida's Everglades
51191587
It's a Girl! Very Rare Sumatran Rhino Born at Sanctuary
See All Nature
Exploration
200334504-001
Enjoy Views from the Pacific Crest Trail
1218426741
La Paz: The Highest City in the World
1204309991
Fishermen Were Once Banned from These Protected Waters - Now That's All Changed
1181353491
Explore the California Redwoods
1210659789
This is the Smallest Country in the World
1179721894
The Driest Place on Earth
1335760991
Exploring the World’s Longest Cave System
1194355543
Washington’s Olympic Peninsula is a Natural Wonderland
1124908803
Fantastic Fire Festivals Around the World
Get to Know The Explorers Club's Black History Month Panelists
See All Exploration
Space
Super Blood Moon Lunar Eclipse 2018
Watch the Super Flower Blood Moon Total Lunar Eclipse
First image of the supermassive black hole at the center of the Milky Way Galaxy
See the First Image of the Milky Way’s Huge Black Hole
1154583282
We Might Smell Life Before We See It
1308213915
Curiosity Daily Podcast: Zero G Romance, Our Sixth Sense, Oinking at A.I.
NASA Has Announced Plans for the Next Decade of Space Missions, And It’s Awesome
656181144
Will Sending Aliens Nudes Lure Them to Us? NASA Thinks so.
New Photos of Martian Space Wreckage
NASA's Jessica Watkins to be first Black Female Astronaut to Spend Six Months in Space
Why are Dark Skies Important?
Photographing Dark Skies
See All Space
Science
1296016011
Ultraviolet Light Could Be the Answer to Future Disease Outbreaks
534969566
Polar Heatwaves Raise Alarm On Ice Melt and Sea Level Rise
Waste Heat Can Be Transformed Into Abundant Clean Electricity
654639539
Robots Imitate Life to Create Better Versions of Themselves
How Veterinarians Care for Marine Animals
sb10067980o-001
Plucking CO2 from the Air Could Decarbonize Food, Fuel, and Fashion
521447418
How a Lizard Loses Its Tail (and More Importantly, Keeps it Attached)
1270978697
Drone Images of Coastal Kelp Show Recovery is Possible
179793591
The First Person to Receive a Heart Transplant from a Pig Survived 2 Months
1238694609
Melting Glaciers Could Flood Society with Problems
See All Science
Motor
1311631292
How Lithium Batteries Will Improve EV Range and Rapid Charging
512627144
Air Taxis Bring Electric Flight Hype to Life in Busy Cities
1137004735
Recycled Lithium-Ion Batteries are Outlasting Brand New Ones
1018915066
Retrofitting Older Cars with Electric Motors Could Transform Transport
1302909231
Hydrogen Ready to Ignite as Transport Network and Technology Takes Off
155420181
Catch-22: How the Clean Energy Industry is Perpetuating Deep-Sea Mining
Second eHighway in Germany
Are Electric Highways the Way of the Future?
973562522
Solid State Batteries Promise Long Life and Rapid Refuel Electric Vehicles
686726377
Electric vs. Hydrogen: The Pros and Cons of Greener Transportation
653513498
Car Industry Takes a Hit Due to Chip Shortage
See All Motor
Schedule
More
Cancel

What on Earth?

11 Seasons
Use your tv provider
S2 E8 8/15/17

Legends of the Lost Cities

New satellite discoveries tell the stories behind the world's most mysterious lost cities. Strange rings might be evidence of a fabled Biblical city -- or the mythical city of Atlantis. Bizarre patterns point to a Californian ghost town.

← Previous Episode
Next Episode →

Seasons

Episode   1

Lost City of the Kalahari

Episode   2

Secret of Doomsday Mountain

Episode   3

Finding Vietnam's Lost POWs

Episode   4

Who Built Supervillain Island?

Episode   5

Curse of the Lost Kingdom

Episode   6

Hidden Tomb of Genghis Khan