Archaeologists in Germany recently revealed a secret tunnel from the Middle Ages — a tunnel hidden within a much older burial ...

Archaeologists in Germany discovered a mysterious medieval tunnel built inside a 6,000-year-old burial site, revealing fascinating layers of history.

Authorities discovered a massive stash of illegal firearms and a secret underground bunker at the base of a 100-foot tunnel ...

Authorities in Northern California say they found AR-15-style assault rifles, other firearms and ammunition in a secret bunker.

(CNN) — A 2,000-year-old tunnel once used by Roman emperors to slip into the Colosseum unseen will open to the public this month, offering visitors a rare glimpse of the arena’s imperial backstage.

A secret tunnel used by the royal family has been revealed, and the palace is "livid." The tunnel connects an iconic London hotel to Saint James's Palace. Queen Elizabeth II reportedly used the ...