75 visiting now: 32 USA 
8 Singapore 
7 Canada 
5 China 
5 Brazil 
3 Czech Republic 
3 UK 
2 India 
2 Germany 
1 Poland 
1 Hong Kong 
1 Algeria 
1 Argentina 
1 Turkey 
1 Lithuania 
1 Australia 
1 Morocco 
1 Ecuador 
1 Belgium 
1 Panama 
8 Singapore 7 Canada 5 China 5 Brazil 3 Czech Republic 3 UK 2 India 2 Germany 1 Poland 1 Hong Kong 1 Algeria 1 Argentina 1 Turkey 1 Lithuania 1 Australia 1 Morocco 1 Ecuador 1 Belgium 1 Panama