A rack and pinion, or ‘cog’, railway uses a combination of cog wheels on a toothed rack rail to allow trains to climb steep slopes – and at 1,917 metres high, Mount Washington, the highest peak in New England, is certainly a steep slope. Construction of the line began in 1862 after Sylvester Marsh, a local businessman, got lost while ascending the mountain. He determined to come up with an easier way to reach the top of the peak and, with the assistance of two inventors, set about building the line.
The railway eventually opened on 3 July 1869 and the following year about 5,000 passengers enjoyed this exciting ride to the summit, many purchasing equally innovative stereoscopic photographs as souvenirs.
The round trip takes three hours, which includes an…