17 visiting now: 9 USA 
2 Poland 
1 Russia 
1 Singapore 
1 China 
1 Turkey 
1 Germany 
1 Peru 
2 Poland 1 Russia 1 Singapore 1 China 1 Turkey 1 Germany 1 Peru 2 Poland 1 Russia 1 Singapore 1 China 1 Turkey 1 Germany 1 Peru