These handbooks were used to construct a class of nautical maps known as portolan charts.

Graham and his companions next attempted a nearby peak, which they believed was the one marked on the map as A21, now known as Changabang.

It is the largest medieval map known to still exist.

The agents are managed through a special building that appears on every map known simply as the Agent HQ (although it can be renamed).

Thousands of armies, millions of men, had marched over this small spot on the map known as the Holy Land.

Several third-party programs that reveal the entire map, commonly known as maphacks, have been released for the update.

A legend explains the pictorial language of the map, known as its symbology.

The finding of one especially large lake is depicted in a map known as the 'Slug' map.

This is the first map known that shows both names, with Hollowtop north of Mt. Jefferson.

He created the most comprehensive and perhaps largest 18th-century map of eastern North America, known today as the Mitchell Map.