"The Valleys of the Assassins" is a historical region located in present-day Iran. It is known for its rugged terrain and dramatic landscapes, which include steep valleys and towering mountains. The area gained notoriety in the early 20th century due to its association with the Nizari Ismailis, a sect of Shia Islam, who were often referred to as "Assassins." The valleys are rich in history and have been the site of various conflicts and cultural exchanges over the centuries. They are also home to ancient ruins and remnants of past civilizations, making them a point of interest for historians and travelers alike.