Built in 1898 during the Klondike Gold Rush, this Scenic Railway of the World was designated as an International Historic Civil Engineering Landmark (along with the Eiffel Tower and Statue of Liberty). The 3-foot wide Narrow Gauge Railroad climbs almost 3,000 feet in the first 20 miles with an average grade of 2.6%, and up to 3.9% in some locations. It also passes through 2 tunnels and travels over sky high trestles and bridges. Comfortable restored and replica passenger coaches are pulled by vintage diesel locomotives. Each heated passenger coach has large viewing windows and a restroom.