Tucked away from the bustling city streets, The Old Treasure House is a quaint museum in Madrid that showcases a fascinating collection of Spanish antiques and treasures from bygone eras. This little-known destination offers a unique glimpse into Spain's rich history and artistic heritage through its meticulously preserved artifacts.

Best Time/Season to Visit:
Ideal for visiting year-round, the museum offers a quiet escape from the busy tourist season, making it perfect for those who enjoy exploring at their own pace without the crowds.