Iowa above.
Artists rendidtion of Navy's "Arsenal ship", envisioned to have a 500-cell Vertical Launch System containing a mix of Tomahawks and Army Tactical Missile System. Crew of 50, cost $500M, plus $500M for a full load of missiles. With a small crew, you wouldn't need to bring it back too often -- you could just forward deploy and swap crews by air
Currently shelved. Was not sexy enough for the Navy.