Pictures of Lech Walesa leading the 1980 strike that gave rise to the Solidarity freedom movement, top and of prime minister Tadeusz Mazowiecki flashing a v-sign in 1989 , bottom , are on display in ... more 
Pictures of Lech Walesa leading the 1980 strike that gave rise to the Solidarity freedom movement, top and of prime minister Tadeusz Mazowiecki flashing a v-sign in 1989 , bottom , are on display in front of the Presidential Palace in Warsaw, Poland on Monday, June 2, 2014, on the eve of the visit of US President Barack Obama and other European leaders who will attend celebrations marking 25 years of Poland’s democracy. (AP Photo/Czarek Sokolowski) less 
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Associated Press | Photo By Czarek Sokolowski
Mon, Jun 2, 2014 1:27 PM EDT