For Europeans, it's easy to forget that traveling to Cuba is taboo for Americans. But that hasn't always been the case. Before Fidel Castro's revolution in 1959, the Caribbean island was treated as a playground for America's wealthy, rather like Europeans now treat Mallorca or the south of Portugal. But since the trade and travel embargos set by President Kennedy at the height of the Cold War, in the early '60s, Cuba has been an illegal destination for Americans.
No direct flights for tourists have left the US mainland since then, and American cruise ships don't sail for Havana. It's technically illegal for Americans to spend money on the island as long as the Castro regime stands. It's seen as "trading with the enemy."
In 1954, the legendary German photographer Heinrich Heidersberger served as a shutterman aboard a cruise from New York to Cuba. The images were considered incidental shots from a photographer's long career -- Heidersberger died in 2006 at the age of 100. In the meantime, though, they record a lost era of Americans on a now-forbidden island.
An Italian friend convinced Heidersberger to join the cruise on the MS Atlantic in part so Heidersberger could teach him the relatively new art of color photography. The photos disappeared for decades but resurfaced in 2001. Heidersberger himself was impressed by how well the slides were preserved, and a series of prints are now on display in an exhibition called "MS Atlantic, New York - Cuba," at Hamburg's Kunstgut Gallery, through April 22.