• In the “High Speed Network” category, it would be China. China has been building high-speed rail at a furious pace since 2007 and now boasts the world's largest network with 9,356 km (5,813 mi) of HSR track, including the longest line the world from Beijing to Guangzhou at 2,298 km (1,428 mi). The Venice Simplon-Orient-Express (VSOE), with its restored, 1920s vintage cars, is the world’s most authentic luxury train. Made famous in the Agatha Christie story, the train still runs on the legendary route between Paris and Istanbul. “Best” may have many categories… • In the “Integrated Network” category, it is definitely Switzerland. In fact, it’s one of Norway’s top attractions and is frequently hailed as one of the world’s most beautiful train rides. • In the “Highest passenger density” category, it would be Japan. World: 1,370,782: 372.12: 4,814: 2006 Territories currently without a rail network. Photo by Taylor McConnell. For that “top of the world” feeling there is no main line to beat the 310-mile Oslo to Bergen railway. Many other itineraries are also available, featuring European gems such as Venice, Prague, Vienna, Budapest and Paris. Andorra … China is the newest high speed rail giant. The Flåm Railway – Norway Just an hour long, the Flåm Railway may not be an epic journey, but it’s among the most scenic.