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International trading routes:

2 Historic trade routes

2.1 Combined land and waterway routes

2.1.1 Incense Route

2.1.2 Pre-Columbian trade

2.2 Predominantly overland routes

2.2.1 Silk Route

2.2.2 Grand Trunk Road

2.2.3 Amber Road

2.2.4 Via Maris

2.2.5 Trans Saharan trade

2.3 Predominantly maritime routes

2.3.1 Roman-India routes

2.3.2 Hanseatic trade

2.3.3 From the Varangians to the Greek

2.3.4 Maritime republics' Mediterranean trade

2.3.5 Spice Route

3 Modern routes

3.1 Wagonway routes

3.2 Railway routes

3.3 Modern road networks

3.4 Modern maritime routes

3.5 Free trade areas

3.6 Air routes

3.7 Pipeline networks

Please read details at:

http://en.wikipedia.org/wiki/Trade_route

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