Tomorrow at 10 a.m. Grand Central Terminal will become more crowded than usual, with the grand opening of the new Apple Store. We got a sneak peek yesterday, and you can click through for more of our photos, showing off the 23,000-square-foot space.

Our photographer Katie Sokoler tells us, "One of the employees showed me a new way to purchase stuff from the store. If you have the Apple Store App on your phone there's an easy pay option, all you have to do is scan the bar code on the product and it charges it to your iTunes account. So now you don't have to talk to anyone and just check yourself out!"

An added treat: the packaging for the grand opening t-shirts gives a nod to the Grand Central Concourse ceiling—Sokoler says, "When you undo the box it opens up into the constellation design on the ceiling." Nice touch, Apple... though we wish this packaging came with every purchase there!