The stadium will be comprised of two separate structures: one, the exterior wall, constructed to replicate the original Yankee Stadium, built in 1923, and the other the interior stadium itself, rising over the top of the exterior. From the outside the structures will look like one building, almost identical in materials and design to the original stadium. There will be a "great hall" between the exterior wall and the interior structure, featuring five to six times more retail square footage than the current stadium.
The description got me thinking, and, finally, Googling...and I found this eerily similar passage on Castles.org:
The main function of all castles was defense, everything else was secondary. They were always surrounded by a curtain wall, which was often supplemented by a reinforced shield wall at strategic points. Crenellated battlements and arrow slits protected the defenders, and attackers often also had to overcome a series of several gates. The main entrance was protected by a drawbridge and machicolations projecting over the gate, from which boiling liquids and missiles could be dropped on the hapless foes below. The final refuge of the castle residents was the stronghold, or keep. It was the tallest and strongest building within the walls, with a high entrance accessible only via a removable ladder or wooden bridge. In addition to being a watchtower and the centre point of the entire castle, the keep was also a status symbol. The main residential building (great hall) was called the Palas. The castle chapel was often installed in the gatehouse or one of the main towers (nearer my God to Thee!), and a small garden inside the walls provided herbs, flowers and vegetables in emergencies. Offices and service rooms were generally located in the outer ward.
From the 16C on castle walls had to be made increasingly thicker and stronger in response to the development of artillery. Only a few castles were made into mighty fortresses.. Instead, the nobility increasingly moved to more comfortable residential castles. Many were sumptuously ostentatious and magnificent buildings.
The potential symbolic implications here are extreme.