The Titanic may be one of the most popular and identifiable wreckage sites in the history of sea travel. It also may be one of the most overrated, deep-sea explorers told Business Insider.

Titanic's storied blue gemstone (which is not at the bottom of the sea) also boasts a connection to Princess Diana Allison Adato is Editor, PEOPLE Books, overseeing the brand's special editions.

"I thought it'd be wonderful to stage 'The Last Supper,' so to speak, on the Titanic. The first-class ... But to do it at sea over 100 years ago is really quite remarkable," Simmons said.