In today’s Discovery, a look at the forgotten secret Nazi bases in the Arctic. Plus, five secret societies that changed the world, what experts say can help hair loss, and a video of the elusive colossal squid.

But first: Is there a secret city under Egypt’s pyramids? 

PHOTOGRAPH BY  CHRISTIAN HEEB, LAIF/REDUX 

For the past few weeks, stories about a secret city under the Pyramids at Giza have set the internet abuzz after two Italian scientists say they’ve discovered 38,000-year-old structures buried deep beneath them. 

The rumors of a lost city go all the way back to Herodotus. Here’s what modern science tells us about the new claims.  

More strange discoveries: 
— Why were these feet washing ashore in the Pacific Northwest? The answer may surprise you.
— This biblical villain’s tomb was lost for centuries 

Thanks for reading. In celebration of Earth Day, please enjoy 50% off Nat Geo Digital, now $19/yr!

PHOTOGRAPH BY PETER FINCH, GETTY IMAGES 

PHOTOGRAPH BY ROV SUBASTIAN / SCHMIDT OCEAN INSTITUTE 

The colossal squid is one of nature’s most elusive animals. Estimated to grow up to 23 feet or so in length, this squid has long eluded cameras...until now. See the first video of the colossal squid in its natural habitat.

STEP 1:

Open the Disney+ App on your TV or Desktop / Laptop browser:

STEP 2:

Launch the Experience on your Mobile Device:

STEP 3:

Point your Phone at the screen and enjoy the magic!

BEFORE YOU GO: Here are the real stories behind five of the most secretive societies in history.

Today’s newsletter was edited and curated by Jennifer Baik and produced by Amanda Williams-Bryant. Thanks for reading!