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September 26 and 27 marks the inaugural Museum Mile Weekend where everyone is invited to enjoy complimentary admission to 12 sites along Charleston's Museum Mile for only $20.

The weekend pass will allow you to stroll through historic mansions, have a blast in the Children's Museum, tour South Carolina's oldest public building and much much more. Take a look at all the participating sites here.

As an added bonus, many of the cultural institutions will also offer special programs over the weekend.

Itching to buy your passes now? Simply click here for online orders.

Update September 24:

The Charleston City Paper points out that Saturday, September 26, is also Museum Day, when you can get into places like Drayton Hall for free.