Interesting, according to CIA World Fact book, Railways: USA: 293,564 km EU: 230,548 km China: 124,000 km Edit to add: With the EU, however, having an area

Interesting, according to CIA World Fact book, Railways: USA: 293,564 km EU: 230,548 km China: 124,000 km Edit to add: With the EU, however, having an area of about 4.5 m km^2, while USA and China have about 10 m km^2 each.