By far Gustave Eiffel’s most well-known work, the Eiffel Tower was designed for the 1889 World’s Fair to celebrate the 100th ...

Along with a history of racist wartime propaganda, other forms of hateful posters and political flyers were persistent throughout the 20th century. The infamous white supremacist group Ku Klux Klan ...

Over the years, more than 20,000 people have vanished in the region between Anchorage, Juneau, and Utqiagvik known as the "Bermuda Triangle of Alaska." ...

These photos of the Dyatlov Pass Incident document the days leading up to the mysterious deaths of nine young hikers — and the investigation into their gruesome deaths.

Between 1971 and 1973, an unknown serial killer in Rochester, New York strangled three girls who had the same first and last initial in what’s known as the Alphabet Murders.

The Sea Peoples terrorized Egypt and the Mediterranean during the Bronze Age, but their identity and origins remain mysterious to this day.

First opened in 1970 and shut down in 2011, the Élan School was the "last resort" for parents of teens with behavioral problems — and allegedly a site of systemic abuse. For some, the idyllic woods of ...

The man on trial was charged with molesting and strangling Marianne Bachmeier’s 7-year-old daughter, Anna.

These Nazi propaganda posters are as repugnant in their message as they are impressive in their artistic craftsmanship. In order to control a population, you must first control the population’s minds.

In 1900, the lighthouse keepers on a remote Scottish island vanished. The official report called it an accident. But suspicious clues – and a puzzling logbook – point to a darker explanation.

Hashima Island was a major part of Japan's manufacturing revolution, but today, the abandoned island is an embodiment of nature taking over an industrial haven.

Forty years before the British fought the Nazis, they used history's first concentration camps to commit genocide during the Boer War.