Built by Krupp in 1941, the Schwerer Gustav railway gun was the Nazis' "miracle weapon" that could blast through 20 feet of concrete from nearly 30 miles away.

From Parisian flower sellers to Chinese monks, see what the world actually looked like a century ago with these striking autochrome images.

Exhibited as curiosities in the 19th century, conjoined twin brothers Chang and Eng Bunker were two of America's most infamous showmen.

Gibbeted bodies would stink so badly that nearby residents would have to shut their windows to keep the wind from carrying the bodies’ stench into their homes.

Neolithic cobra pottery unearthed in Taiwan, missing half of Ramses II statue found in Egypt, mass grave filled with plague victims discovered in Germany.

Kim Peek's one-of-a-kind brain allowed him to read two pages of a book at once, recite the day of the week for any date in history, and memorize some 12,000 volumes.

Sweater from 1807 found inside a sealed parcel in the UK, 8,600-year-old bread discovered in Turkey, medieval badge depicting a basilisk unearthed in Poland.

Porridge-covered Stone Age pot unearthed in Germany, colonial armor discovered in Maryland, ancient bronze hand inscribed with mysterious writing found in Spain.

Roman funerary urn unearthed in Italy, 19th-century chocolate factory discovered in Spain, Iron Age cemetery found with humans alongside dogs and horses.

Intact Roman chicken egg found in England, 3,600-year-old lipstick unearthed in Iran, millennia-old hallucinogens discovered in the Netherlands.

Pompeii scrolls deciphered using AI, seventh-century armored warrior unearthed in Hungary, Roman funerary bed found in London.