The line includes the LOCATION@1 , which , at NUMBER@1 m -LRB- NUMBER@2 feet -RRB- above sea level , is the world 's highest rail track .

The line includes the LOCATION@1 , at NUMBER@1 m -LRB- NUMBER@2 feet -RRB- above sea level the world 's highest rail track and LOCATION@2 which is the highest railway station .
