Holy See (Vatican City): total: 862 m; note - a spur of the Italian Railways system, serving Rome's Saint Peter's station
standard gauge: 862 m 1.435-m gauge (1999)
Honduras: total: 595 km
narrow gauge: 349 km 1.067-m gauge; 246 km 0.914-m gauge (1999)
Hong Kong: total: 34 km
standard gauge: 34 km 1.435-m gauge (all electrified) (1996 est.)
Hungary: total: 7,606 km
broad gauge: 36 km 1.524-m gauge
standard gauge: 7,394 km 1.435-m gauge (2,270 km electrified; 1,236 km double track)
narrow gauge: 176 km 0.760-m gauge (1998)