Today, the terms cruise ship and ocean liner are often used interchangeably, but most large ships on the water are cruise ships. In fact, Cunard's flagship Queen Mary 2 — built in 2004 — is ...

But it had powerful steam-driven turbines that produced 242,000 horsepower — and high speeds. ... The ocean liner was retired from service in 1969 and ended up in Philadelphia in the mid-1990s.

Today, the terms cruise ship and ocean liner are often used interchangeably, but most large ships on the water are cruise ships. In fact, Cunard's flagship Queen Mary 2 — built in 2004 — is ...