Although ancient architect Vitruvius wrote that Romans used slaked lime to build their marvels, analysis of construction materials found at Pompeii suggests that a "hot mixing" method is what really made Roman concrete so durable.

Twenty-six years after he died by suicide, DNA linked Robert Eugene Brashers to the quadruple homicide of four girls in Austin, Texas — as well as a number of other violent crimes.

The now-extinct sea cow species, Salwasiren qatarensis, likely played a key role in its ocean ecosystems, much like modern-day dugongs.

While excavating a settlement that was lost to a fire in the 4th century C.E., researchers found one storage jar filled with 23,000 coins weighing in at 83 pounds as well as another jar packed with 18,000 coins that weighed 110 pounds.

Powered by 20 rowers, this massive vessel featured a central pavilion where the wealthy and powerful could, in the words of Greek historian Strabo, "dance without restraint and with extreme licentiousness."

After a long struggle with substance abuse and multiple sclerosis, 65-year-old Richard Pryor died of a heart attack on December 10, 2005.

Today, NASCAR is one of America's most popular spectator sports — but the earliest races looked very different.

Weighing a whopping 23 grams, this ring is adorned with parallel grooves on each side as well as an image of a married couple in the center.

Experts have now determined that the Ketton mosaic depicts a rare version of the Trojan War's climax from Phrygians, a play by the famous Greek dramatist Aeschylus that has since been lost to history.

The artwork, which depicts Pierre-Auguste Renoir's son Jean playing with his nanny, was painted in the 1890s and completed sometime before 1910, and was virtually unknown to the wider public for more than a century.