Adapted from Huffington post
Each year, millions of visitors flock to the Alhambra, the Moorish palace in Granada, Spain. Pilgrims gravitate toward the palace's poetry-lined walls and secret gardens, each with its own legends and stories, some lost to time. But recently, researchers discovered an unexpected missive of another kind: A 92-year-old love letter, hidden in the ornate woodwork of a palace door.