The Guest House at Graceland is a hotel adjacent to the King's mansion, which Priscilla helped design.
"This is a grand staircase, modeled after the staircase in the front room of Graceland," Priscilla says, giving a tour of the hotel. "This chandelier is a large version of the one that's hanging there now."
While the rooms inside the original mansion reflect Elvis' '70s style, The Guesthouse showcases a more updated version.
"We have five restaurants," Priscilla says. "We have kind of a man cave in the bar and grill, which has a huge pool table that Elvis loved to play. We have a 464-seat theatre for live performances, movies and large events."
The Guest House is the most significant enhancement to Graceland since it was made public in 1982 to help pay for the massive upkeep.
The addition includes 450 luxurious rooms, concierge service, room service, a free airport shuttle, unique-themed VIP suites and an expansive space for special events.
Priscilla reveals that the Guest House has been 30 years in the making.
"We have had about three or four models that we previously looked at and declined because it just wasn't the right feel," Priscilla says. "We now have come to this amazing team of people who have put this together in a way that we feel is right for Elvis Presley."
Graceland is still one of the biggest attractions in Memphis, Tennessee, and Priscilla reveals what she believes still draws people to Elvis today.
"I think his humble beginnings," she explains. "He is the American dream. He was the package deal -- his good lucks, his voice, how he was with people. He was just an amazing human being and I do feel that he was absolutely born to be who he was."
Elvis died at the property in 1977 and is buried in the backyard of the estate along with his parents and grandmother. More than 600,000 fans visit each year to pay their respects.
"He was so proud of Graceland and anybody that came in that was a newcomer, first thing he did was show them all over Graceland," Priscilla says. "There's a bit of Elvis everywhere here."