Highway
Major highways are often named and numbered by the governments that typically develop and maintain them. Australia's Highway 1 is the longest national highway in the world at over and runs almost the entire way around the continent. China has the world's largest network of highways followed closely by the United States of America. Some highways, like the Pan-American Highway or the European routes, span multiple countries. Some major highway routes include ferry services, such as U.S. Route 10, which crosses Lake Michigan.
Autostrada A1 (Italy)
The Autostrada A1, nicknamed "Sun Motorway", is the oldest European Highway and the most important in Italy. The highway links the biggest italian Tyrrhenian-side cities: Milan, Bologna, Florence, Rome and Naples. At 754 km, it is the longest Italian autostrada and it runs parallelly to Adriatic A14. It is a part of the E35 and E45 European roads.