In 1987—75 years after the RMS Titanic sank—John Joslyn co-lead an expedition to the bottom of the ocean to photograph the wreck and bring up artifacts. Today, the gigantic museum he founded holds authentic artifacts from the Titanic valued at over $4 million. The museum is the only place in the world guests can actually walk the Grand Staircase - built actual size, Other attractions include viewing a third-class cabin, first-class living room suite, bridge, touch a growing iceberg and test how long they can keep their hands in 28 degree water and try to climb the slopping decks and get into a lifeboat. A ship walk through typically takes two-hours.