What are Czech hedgehogs? Ukraine’s surprisingly simple antitank trap
Czech hedgehogs are made from two metal beams that are sealed together at angles
Experts crack the secret to last letter of Mary, Queen of Scots before her execution (video)
Researchers have shed new light on how she safeguarded the final letter that she wrote on the eve of her execution, using a technique known as the spiral lock
The common Ancient Greek and Celtic origins of St. Patrick’s Day
Both the Greeks and the Celts believed that touching sacred trees could tap into good fortune