Ship, comprising: - a hull; - a plurality of decks arranged inside said hull; - at least one casing delimiting a cavity extending vertically across said plurality of decks from at least one engine room to a funnel; - at least one exhaust flue of the fumes generated by one or more internal combustion engines placed in said at least one engine room, said exhaust flue being installed inside said casing and comprising a plurality of components with concentrated mass (31, 32, 33, 34) and a plurality of components with mass distributed in length (35; 36); - a plurality of structures (51, 52, 53) suitable for supporting inside the casing the plurality of said components with concentrated mass (31, 32, 33, 34) and the plurality of said components with mass distributed in length (35; 36), characterized in that said support structures comprise: - a plurality of main platforms, each of which defines a main support base inside said cavity and is connected to walls of the casing at a ship deck by the interposition of main elastic suspensions; and - a plurality of secondary platforms, each of which is supported directly or indirectly only by one of said main platforms and defines a secondary support base arranged at a different height with respect to the main support base defined by the corresponding main platform; wherein at least one of said concentrated mass components (31, 32, 33, 34) is positioned on each main platform, and wherein the assembly consisting of a main platform, the corresponding at least one concentrated mass component (31, 32, 33, 34), possibly one or more secondary platforms supported by said main platform, and one or more components with mass distributed in length (35; 36) connected to said main platform and/or possibly one or more secondary platforms constitutes a structurally independent module (50a, 50b, 50c, 50 d, 50e), and in that the main elastic suspensions of each main platform are sized to cut the transmission from the respective module (50a, 50b, 50c, 50d, 50e) to the casing of low frequency vibrations generated by said engines and transmitted inside the casing by said exhaust flue, exploiting the total mass of said respective module (50a, 50b, 50c, 50d, 50e). - a hull; - a plurality of decks arranged inside said hull; - at least one casing delimiting a cavity extending vertically across said plurality of decks from at least one engine room to a funnel; - at least one exhaust flue of the fumes generated by one or more internal combustion engines placed in said at least one engine room, said exhaust flue being installed inside said casing and comprising a plurality of components with concentrated mass (31, 32, 33, 34) and a plurality of components with mass distributed in length (35; 36); - a plurality of structures (51, 52, 53) suitable for supporting inside the casing the plurality of said components with concentrated mass (31, 32, 33, 34) and the plurality of said components with mass distributed in length (35; 36), characterized in that said support structures comprise: - a plurality of main platforms, each of which defines a main support base inside said cavity and is connected to walls of the casing at a ship deck by the interposition of main elastic suspensions; and - a plurality of secondary platforms, each of which is supported directly or indirectly only by one of said main platforms and defines a secondary support base arranged at a different height with respect to the main support base defined by the corresponding main platform; - a plurality of main platforms, each of which defines a main support base inside said cavity and is connected to walls of the casing at a ship deck by the interposition of main elastic suspensions; and - a plurality of secondary platforms, each of which is supported directly or indirectly only by one of said main platforms and defines a secondary support base arranged at a different height with respect to the main support base defined by the corresponding main platform; wherein at least one of said concentrated mass components (31, 32, 33, 34) is positioned on each main platform, and wherein the assembly consisting of a main platform, the corresponding at least one concentrated mass component (31, 32, 33, 34), possibly one or more secondary platforms supported by said main platform, and one or more components with mass distributed in length (35; 36) connected to said main platform and/or possibly one or more secondary platforms constitutes a structurally independent module (50a, 50b, 50c, 50 d, 50e), and in that the main elastic suspensions of each main platform are sized to cut the transmission from the respective module (50a, 50b, 50c, 50d, 50e) to the casing of low frequency vibrations generated by said engines and transmitted inside the casing by said exhaust flue, exploiting the total mass of said respective module (50a, 50b, 50c, 50d, 50e).