Emily Roebling's husband was the chief engineer of the Brooklyn Bridge, but when he fell ill soon after construction began, Emily spent over a decade working as his liaison, supervising the site, and ensuring that the structure was built to his specifications.

Enrico Tosti-Croce long believed the piece of marble his father brought back from the Acropolis of Athens in the 1930s was from the Parthenon, but experts say it's part of the Hekatompedon, which was built a century earlier.

Over 10 weeks in 1946, a predator known only as the "Phantom Killer" attacked four sets of couples in Texarkana, leaving five people dead, before vanishing completely.

Nanotyrannus lancensis was half the height of a Tyrannosaurus rex and just one-tenth of its body mass, leading it to be misidentified as a "teen rex" on multiple occasions.

Both artifacts were uncovered at Rustavi Fortress, and they're the first medieval objects of their kind found in the South Caucasus region.

Forged circa 1558, this sword was a type of elite weapon known as a degen that was reserved only for the upper class.

The 2,200-year-old coin is made of 99 percent pure gold and features an animal's face on one side and Celtic symbols on the other.

Two Edmontosaurus fossils discovered in Wyoming were uncovered in such pristine condition that they're being called "mummies." Not only is their skin preserved in perfect detail, but researchers were also able to see something they'd never encountered on any dinosaur: hooves.

Using hyperspectral cameras, researchers are able to see subtle differences in the red pigments of the rock art that are invisible to the naked eye.

Divers at Tantura Lagoon have uncovered three shipwrecks, the oldest of which dates back 3,000 years — and they were filled with containers like bowls, jars, and amphorae as well as food like grapes and dates.