Which transportation company pioneered the first-ever 'floating retail store' concept that allowed passengers to shop while traveling across water?

The transportation industry has revolutionized retail marketing strategies over the decades, creating unique shopping experiences for travelers. From airport duty-free concepts to innovative train station retail hubs, transportation venues have become significant retail touchpoints. This poll tests your knowledge about a groundbreaking retail innovation that changed how people shop while traveling.

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Cunard Line, with their 'Sea Bazaar' concept launched in 1968 on the Queen Elizabeth 2
Japan Railways, with their 'Shop & Go' retail cars introduced in 1972
Pan American Airways, with their 'Sky Mall' concept introduced in 1975
Staten Island Ferry, with their 'Harbor Market' launched in 1981