Juvenile Antarctic tern (Sterna vittata) resting on ship's rail near Tristan da Cunha, South Atlantic Ocean

Oil tanks on railroad tracks

Transshipment of containers at the container terminal in Dortmund, North Rhine-Westphalia, Germany

Forth Rail Bridge crossing the firth of Forth Fjord near Edinburgh, Scotland, Great Britain, Europe

Forth Rail Bridge crossing the firth of Forth Fjord near Edinburgh, Scotland, Great Britain, Europe

Duisport, port and logistics center, Ruhrort inland port on the Rhine river, largest inland port in the world, DeCeTe container terminal, transshipment of containers to ships, road and rail, tank farm on the Oelinsel island, Duisburg, North Rhine-Westphal

Aerial view, construction site, bulk ships, unloading of coal, ThyssenKrupp Steel, port Walsum, Duisburg, Ruhrgebiet region, North Rhine-Westphalia, Germany, Europe

Aida Club Cruiser, railing, Corsica, France, Europe - Attention: Restricted right of use! Please ALWAYS contact the press office before publishing this picture: AIDA Cruises, Am Strande 3d, 18055 Rostock, Germany, +49 (0) 381 / 444-8021, public-relations@

Young man standing at the railing at dusk, Aida Club Cruiser, during travel, Corsica, France, Europe - Attention: Restricted right of use! Please ALWAYS contact the press office before publishing this picture: AIDA Cruises, Am Strande 3d, 18055 Rostock, G

Lifebuoy

Sailing yacht with a strong inclination, Gedser, Falster, Denmark, Europe

Cruise with the Hurtigruten, Norwegian Coastal Express, Hurtigruten MS Finnmarken Ship, North Norway, Scandinavia, Europe

Cruise with the Hurtigruten, Norwegian Coastal Express, postal flag, North Norway, Scandinavia, Europe

Aerial view, construction site, bulk ships, unloading of coal, ThyssenKrupp Steel, port Walsum, Duisburg, Ruhrgebiet region, North Rhine-Westphalia, Germany, Europe

Cruise North Cruiseship Lyubov Orlova entering a fjord of Devon Island, Northwest Passage, Nunavut, Canada, Arctic

Lifebuoy, Antarctic Dream ship, Lemaire Channel, Antarctic Peninsula, Antarctica

Forth Rail Bridge crossing the firth of Forth Fjord near Edinburgh, Scotland, Great Britain, Europe

Cologne city centre with cathedral and Hohenzollern Bridge, Museum Ludwig, Rhine, Main Station, Musical Dome Koeln, North Rhine-Westphalia, Germany, Europe

Bridge to Usedom island near Wolgast, Mecklenburg Western Pomerania, Germany, Europe

Rethe Lift Bridge, Hamburg, Germany, Europe

Silhouette of man on boxcar

Train passing through New Mexico USA