Another outstanding exhibit at the World Ocean Museum, the Cosmonaut Viktor Patsayev is the world's only space communications ship turned into a museum. Moored by Naberezhnaya Petra Velikogo (Petra Velikogo Embankment) in Kaliningrad since 2001, the Cosmonaut Viktor Patsayev is not entirely a museum – not yet. The ship still continues to support communication with the International Space Station. Your tour guide will tell you more about Kaliningrad's mark on the history of space exploration. It turns out that four Soviet cosmonauts, Aleksey Leonov, Viktor Patsayev, Yuri Romanenko and Alexander Viktorenko, were from Kaliningrad.