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Each year, Grand Central Terminal has a light show for the holidays. And this year, it's a kaleidoscope:

The walls and pillars of the main concourse will be illuminated in a joyful display of color and light created from architectural and historic elements and views of Grand Central Terminal and other well-known New York City icons. Each seven minute show, which will be accompanied by synchronized music, will feature artistically adapted images for a wondrous presentation of fluctuating forms.

The Grand Central Kaleidoscope will start tomorrow, with shows every half hour between 11AM to 9PM, and will be shown until New Year's. But today at 2PM MTA Chairman Peter Kalikow will be "flipping the switch" on the light display, so if you see him, we're sure he'd love all your MTA-related questions and complaints right then and there.

Here's Grand Central's holiday website.