For decades, millions of people lived in New York City's tenements — which were notoriously cramped, dark, poorly maintained, and often became hotbeds of disease.

Alexander Hamilton died on July 12, 1804, one day after being shot in the abdomen during a duel with longtime rival Aaron Burr in Weehawken, New Jersey.

From 1590 to 1610, Elizabeth Bathory allegedly tortured and killed hundreds of poor servant girls and women in Hungary. But was she actually guilty of these heinous crimes?

Notorious for her drunken exploits and various stints at mental health facilities, Frances Farmer was subjected to a slew of dark rumors — but here’s the truth about her story.

Edward Curtis' portraits documented Native American culture in the early 1900s — as reservations and assimilation threatened to destroy it forever.

Sunday school teacher Lizzie Borden became a media sensation when she was accused of murdering her father and stepmother with an ax on August 4, 1892. But was she guilty?

Myra Hindley was a notorious British serial killer who — along with her partner Ian Brady — was responsible for the Moors murders of five children in the 1960s.

These gorgeous pictures of Earth from space present our planet's colorful, bizarre geography from a stunning new perspective.

Photographer Lewis Hine captured the appalling child labor conditions of early 20th century America in stark, history-making detail.

Elephants may be known for their long memories, but these 21 elephant facts prove there is more to these majestic animals than you think.