Charleston Mayor Joe Riley is leading a contingent of design-minded mayors on a trip to Poland, looking to share experiences on revitalizing urban communities. During the week-long trip, Riley and others will be meeting with 20 Polish mayors in the first international meeting of the Mayors’ Institute of City Design, a program founded by Riley as a way for mayors and planners to share best-practices.

“This is an important and critical time in the redevelopment of Polish cities,” says Charleston spokeswoman Barbara Vaughn.

The event came at the urging of Victor Ashe, the U.S. Ambassador to Poland and U.S. mayors of Knoxville, Tenn. The program is a shared effort by the Mayors’ Institute and the Union of Polish Metropolises (no, really).