There's a new Princess Diana exhibition in Las Vegas. It has over 700 items, many of which have never been seen by the public.

The new exhibition has over 700 items from Princess Diana

A new exhibition opened this month in Las Vegas to coincide with the 25th anniversary of the death of Diana.

The attraction, "Princess Diana: A Tribute Exhibition," occupies a 10,000-square-foot space where more than 700 items of memorabilia are on display. They include some of the late royal's evening gowns and artifacts such as the personal letters she wrote and the presents she gave to friends.

David Corelli, the curator of the exhibition, told Insider many of the items had not been seen before by the general public. He said he selected each of them with care to celebrate the "life and legacy" of Diana.

"Diana's message continues to get stronger and stronger with the passage of time," Corelli said. He added, "She is one of the most influential people of our time."

"She single-handedly changed the world with her humanitarian efforts, the love she showed for her family and others, and the impact she made on fashion."

He said the exhibit — which starts with a show of relics from her childhood in the UK — featured artifacts from her wedding to Prince Charles in 1981. Many of the dresses on display were sold at auction in 1996 at Sotheby's New York. The proceeds were split between some of Diana's favorite charities.

Tickets for the exhibition — which is inside The Shops at Crystals — start at $30 for adults. The price of admission includes a donation to the breast-cancer charity Pink Ribbons Crusade.

This off-the-shoulder ball gown is typical of the fairytale-esque dresses that Diana wore in the '80s, when she joined the British royal family.

Diana wrote many of the party invitations she sent by hand, including this one for Prince Harry's 4th birthday celebration.

Neighbors gave Charles, now King Charles III, and Diana this garden bench as a wedding present in 1981.

Diana began to favor the "little black dress" as she got older — even though royal protocol indicated that black should be worn only during periods of mourning.

This official pass belonged to one of Diana's bridesmaids. It enabled her to get ready for the wedding at the same residence in London as the princess.

Diana gave a silver locket to each of her five bridesmaids.

One of Diana's bridesmaids preserved the posy she carried at the royal wedding.

Diana wrote a heartfelt letter to a man who was struggling with bulimia. She used to battle with the same eating disorder.

The exhibition in Las Vegas includes a flamenco-style gown that Diana once wore on a tour of Spain.

The exhibition features some of the schoolwork that was completed by Diana in the mid-'70s.

This strapless showstopper was created by Catherine Walker, one of Diana's favorite designers.