Size Comparison: Allure of the Seas vs. RMS Titanic

A couple of days ago, my featured photo on 75Central.Com was an abstract detail of Royal Caribbean's Allure of the Seas' port-side balconies:


In the description, I noted that this ship is the largest passenger vessel ever constructed (1,187 feet long and ~225,000 GT).  After posting this, I started wondering how that compared to the RMS Titanic, which was launched roughly 99 years before the Allure and was, at that time, the largest passenger vessel ever built.  Lucky for me, others have already done the comparison and I was able to find this somewhat mind-blowing graphic online:


Someone even put together this more direct comparison (though a quick comparison of Allure's 154-foot beam with Titanic's 92-foot beam puts this into "questionable" territory) :


As for my own visual comparison, here's a shot I recently took of the Allure sharing a dock in Cozumel with her fleetmate Mariner of the Seas (beam: 126 feet):

In Cozumel