Apple is building a massive structure just for its upcoming iPhone 6 event

Apple today issued invitations for its upcoming iPhone 6 event on September 9, which is also said to include its much-anticipated wearable device. According to the invitations, Apple is planning to host the event at the Flint Center for the Performing Arts at De Anza College in Cupertino, the same location where Steve Jobs introduced the original Mac 30 years ago. For the occasion, it appears that Apple has been building a massive structure on the campus, which has been kept under tight wraps with a white barricade. A MacRumors reader has sent in images of a mysterious structure at the Flint Center, which appears to span three stories and is protected by “scads” of security people. Administrators had previously declined to comment on what the structure is for, stating only “We are not at liberty to discuss that due to client wishes.” Apple has not held an event at the Flint Center in many years, so the company’s return to the site of the original Mac unveiling suggests its upcoming announcement will be a major one. The Flint Center has a much higher seating capacity than other venues where Apple has unveiled products in the past, including the Yerba Buena Center and its own Cupertino campus.