Japan’s famous Edo period began in 1603 and lasted until 1868. It was a relatively peaceful era after centuries of feudal wars. Eventually, tourism became a major pastime across the country, although commoners were not allowed to travel. As nationwide travel became more popular, many books listed the best places to visit around the country, from hot springs to mountains. Although those lists were not definite, the Kintai Bridge, the Kazura Bridge of Iya, and the Saruhashi Bridge are often regarded as Japan’s three unique bridges. Known as “monkey bridge,” Saruhashi…