Playboy vet Holly Madison gives a rare peek inside Disneyland's VERY private Club 33 that costs $25K to join

Playboy veteran Holly Madison has given her Instagram followers a very rare peek inside the private Disneyland restaurant called Club 33.

'Club 33 Alice in Wonderland tea was divine ✨✨✨,' wrote the Girls Next Door reality TV star as she posed in a pale blue dress with a pearl Chanel necklace and her blonde hair worn down.

The ornate club - located in the Anaheim, California park - has sit-down dining and a long bar so VIP patrons can cool off after walking through the packed venue that sees 50,000 visitors a day.

Club 33, located at 33 Royal Street in Disneyland California's New Orleans Square, is one of the most exclusive restaurants in the country.

Members are required to pay about $25,000 to $50,000 to join and annual fees in the range of $10,000 to $15,000.

The restaurant, which serves a six-course tasting menu of French and New American food, is the only spot in the park to serve alcohol.

An unmarked building, the restaurant and club is recognized only by its '33' plaque hanging above the door. 

But for those in the know - there are a rumored 500 members and a further 800 on the waiting list - it's undeniably one of the world's most extravagant hangouts. 

It officially opened in May 1967 as the location where Walt Disney could entertain visiting dignitaries, celebrities and other VIPs.

Unfortunately, however, Disney died just five months before the club was completed - though it is still decorated with many antiques chosen by both himself and his wife.

One particular piece to note is the French elevator inside the reception area, which Disney had specially made for the building. 

As it's no longer functional, it's now been made into a decorative booth.

Inside, there is the famous Court of Angels.

And there is also a spectacular curved grand staircase, Victorian-era decor and authentic Disney props. 

The only way the general public can dine at Club 33 is as the invited guest of an active member, who must make and manage the reservation.

There is a strict dress code - as in no shorts, tank tops or torn jeans - and a photography policy in certain areas. 

Members typically receive private VIP tours, park tickets, and exclusive merchandise access.

Disneyland in Anaheim is frequently visited by celebrities such as Kim Kardashian, Selena Gomez, Vanessa Hudgens and Jessica Alba. 

Madison rose to fame on Girls Next Door, the reality show focused on the lives of Hefner's girlfriends at the Playboy Mansion. 

The popular series launched in 2005 and ended in 2010.

She was one of Hefner's main girlfriends, alongside Bridget Marquardt and Kendra Wilkinson.

The sixth and final season premiered in 2009, introducing his future wife, Crystal Harris, as well as twins Kristina and Karissa Shannon.

Hefner was married to Harris when he died in 2017, at the age of 91. She eloped with James Ward on April 2 on Aitutaki in the Cook Islands.