RMS Olympic and sold at auction before she was scrapped, and now adorn buildings and a cruise ship. By contrast with "Olympic", the other two ships in the class, "Titanic" and , did not have long service lives. "Titanic" collided with an iceberg in the North Atlantic on her maiden voyage and sank, while "Britannic" struck a mine and sank in the Kea Channel in Greece in 1916. "Britannic" never served her intended role as a passenger ship. Built in Belfast, Ireland, "Olympic" was the first of the three s – the others were and . They were by far the largest
Sister ship Sister ship A sister ship is a ship of the same class or of virtually identical design to another ship. Such vessels share a nearly identical hull and superstructure layout, similar size, and roughly comparable features and equipment. They often share a common naming theme, either being named after the same type of thing (places, constellations, monarchs) or with some kind of alliteration. Often, sisters become more differentiated during their service as their equipment (in the case of naval vessels, their armament) are separately altered. For instance, the U.S. warships , , , and are all sister ships, each being