Question

Analogy Help:
Ferdinand Magellan : world :: Marco Polo : ?

Answer 1

Ferdinand Magellan went on the first circumnavigated expedition of the Earth.   Marco Polo journeyed across Asia and along the Silk Road. 

Answer 2

Ferdinand Magellan: World :: Marco Polo: Asia

Magellan sailed across the world (or at least his crew did)
Marco Polo sailed to the Asias, and viewed many of the Asian places, including China, mongolia, etc.

hope this helps