A plan by Washington D.C. officials would have the ever popular International Spy Museum move to the former Carnegie Library in Mount Vernon Square.

Events DC and Malrite Co of Cleveland are planning on renovating the Carnegie Library and part of the plans would have it include 40,000 square foot exhibition space underground, Reuters reports. The ISM is privately owned by Malrite.

In a statement, Mayor Vincent Gray said, "I applaud Events DC and The Malrite Company for developing a public-private partnership that will revive and preserve this historical asset," speaking in reference to the Carnegie Library.

The Carnegie Library hasn't been used as a library for years, instead it has been rented out as the headquarters of the Historical Society of Washington D.C. The International Spy Museum supposedly has the largest international collection of spy artifacts. The museum has an Enigma cipher and a lipstick pistol on display.

According to The Washington Post, part of the renovation would include a "sculpted glass pavilion" on the north side, a visitors center, cafe and the museum.

Events DC would also like to include outdoor seating, a playground and an amphitheater.

The renovations would add 58,000 square feet, but before anything, the plan needs approval from federal and local stakeholders due to the historic nature of the property.

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