[LOOK] So how deep is the Titanic?

On Sunday, a submersible descended towards the bottom of the Atlantic ocean to observe the Titanic shipwreck. How deep did it descend? About 31 times the length of Mercury Tower...

The world-famous Titanic ship wreck
The world-famous Titanic ship wreck

A 21-foot-long submersible lost contact with its parent surface vessel on Sunday morning about one hour, 45 minutes into what should have been a two-hour dive to the site of the Titanic shipwreck.

But rescue efforts by the US Coast Guard have been difficult, owing to the sheer depth at which the shipwreck lies, and where the submersible went missing. Take a look at just how deep the Titanic rests on the oceanbed, and compare it with Malta’s largest building and most iconic shipwreck.