Travel to Spain to ride on Europe's biggest high-speed rail network; on the route between Barcelona and Madrid, visit areas under construction to expand the infrastructure and learn about the new high-speed train set to hit the tracks in the coming year.

Hector Rail's powerful trains haul timber for paper products giant SCA to their $1.2-billion pulp mill in Ostrand, Sweden; this challenging route takes trains along some of the most difficult railways in the country.