Ironforge is structurally laid out in a giant circle of sections:

The Commons (by the gates)
The Great Forge (at the center)
The Mystic Ward (north from the gates)
The Military Ward (east from the gates)
The Forlorn Cavern’ (beyond the Mystic Ward)
Hall of Explorers (far opposite from the Commons)
Tinker Town (beyond the Military Ward)
Deeprun Tram (from Tinker Town)
The Great Forge is the heart and soul of Dwarven culture, where all of their ingenious creations and weapons are made. At its center is the famed Great Anvil, where most of the best Dwarven blacksmithing trainers can be found. Ringed around the Great Forge are a great deal of shops and guild offices, including trainers for cooking, mining, first aid, tailoring and leatherworking. as well as the court of the High King Magni Bronzebeard. Ironforge’s gryphon master is also located here.

The Hall of Explorers is home to the famed Iron Forge Explorer’s Guild. Every archaeological expedition the Alliance sends out is coordinated here. It also houses the Iron Forge museum and the Great Library.

Originally, Tinker Town was just a small quarter of the city for Gnomes visiting from Gnomeregan to use. Since the fall of their clockwork city, it has become the center of the Gnomish court in exile. The High Tinker can be found here, along with his close advisors. It is also home to a number of Alchemy and Engineering trainers, as well as the entrance to the famed Deeprun Tram. The Deeprun Tram connects the city of Ironforge with the city of Stormwind, the capital city of the Human nation of Azeroth.