Scenic World's railway line is the steepest
The steepest railway line is in Scenic World, Blue Mountains, NSW, Australia at a whopping 52 degrees below horizontal.
Your mother's line
Steepest line possible dealing with slope is up to, but not including infinity.
A vertical line.
potty
Pechenga, north of Murmansk, in Russia, has probably the world's northernmost public railway line.
London's Metropolitan line is the oldest underground railway in the world, dating from 1863
Takabisha is the world's steepest roller coaster located at Fuji-Q Highland in Japan.
The Trans-Siberian Railway is a network of railways connecting Moscow with the Russian Far East and the Sea of Japan. It is the longest railway in the world.
Echuca railway line was created in 1864.
Lilydale railway line was created in 1860.
Toronto railway line was created in 1891.