"This groundbreaking study has redefined the boundaries of satellite data analysis and archaeological exploration," said the ... the idea of a vast underground city is questionable. "The Mayans and ...

After the Great Flood of 1862, Sacramento elevated its streets and buildings creating a unique underground world still ...

“When we magnify the images [in the future], we will reveal that beneath it lies what can only be described as a true underground city,” Malanga said, according to the outlet. Skepticism and ...

Scientists have discovered a "vast underground city" running beneath the famed Egyptian pyramids in Giza. Using radar equipment, they created high-resolution photos of thousands of feet below the surf ...