Sinking of the RMS Titanic time of her entry into service on 2 April 1912, Royal Mail Ship (RMS) "Titanic" was the second of three sister ships, and was the largest ship in the world. She and her sister, , were almost one and a half times the gross register tonnage of Cunard's and , the previous record holders, and were nearly longer. "Titanic" could carry 3,547 people in speed and comfort, and was built on a hitherto unprecedented scale. Her reciprocating engines were the largest that had ever been built, standing high and with cylinders in diameter requiring the burning of of coal per
RMS Titanic and in particular in cities that had suffered notable losses. These included Southampton, Liverpool and Belfast in the United Kingdom; New York and Washington, D.C. in the United States; and Cobh (formerly Queenstown) in Ireland. A number of museums around the world have displays on "Titanic", the most prominent is in Belfast, the ship's birthplace (see next section). RMS Titanic Inc., which is authorised to salvage the wreck site, has a permanent "Titanic" exhibition at the Luxor Las Vegas hotel and casino in Nevada which features a 22-ton slab of the ship's hull. It also runs an exhibition which travels