LOUISVILLE, Ky. —

One of the first holiday traditions to start back up in Louisville this year is Lights Under Louisville.

Watch video from a previous year in the video player above.

The unique, underground drive-thru light show is located inside the Louisville Mega Cavern.

Organizers say the event is the only one of its kind in the world.

This year, it will begin Nov. 14 at 6 p.m. and run all the way through Jan. 3.

There will be seven million points of lights and more than 40 themed displays.

And new this year: A Cavern Christmas Market.

This Saturday, there will be a day of holiday shopping with more than 55 vendors ranging from food trucks to unique creations. It's free to attend.

Tickets for the drive-thru experience must be bought online.

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