The Metro in Stockholm is known as the Tunnebana, opened in 1950, and is considered one of the most beautiful in the world. The underground station was cut into the rocks. It’s comprised of 100 stations, of which 53 are above ground while 47 are underground. The Metro in Stockholm is known as the Tunnebana, opened in 1950, and is considered one of the most beautiful in the world. The underground station was cut into the rocks. It’s comprised of 100 stations, of which 53 are above ground while 47 are underground. e Source