Which is the longest road in the world?
a) The Pan-American Highway
b) Asian Highway 1
c) Highway 1
d) The Trans-Siberian Highway
The Pan-American Highway is the longest road in the world. It stretches from State of Alaska to south of Argentina and has a total length of about 50000 km (30000 miles). This highway crosses 14 different countries in North, South and Central America.