40 visiting now: 28 USA 
2 China 
2 Australia 
1 Satellite 
1 Germany 
1 Argentina 
1 Singapore 
1 India 
1 UK 
1 Korea 
1 Brazil 
1 Netherlands 
1 Canada 
1 Poland 
2 China 2 Australia 1 Satellite 1 Germany 1 Argentina 1 Singapore 1 India 1 UK 1 Korea 1 Brazil 1 Netherlands 1 Canada 1 Poland