A 'Treasure Island' mansion full of surprises is on sale for $5.5 million. Take a look inside

The Treasure Island house built by magazine publisher Felix Dennis.Savills

• A 'Treasure Island' inspired mansion built by magazine publisher Felix Dennis is on sale in England.
• The 12,000 sq. ft. home has a pirate-themed pool, sauna and steam room, and an Art Deco cinema and bar.
• Real estate agent Savills is listing the property, known as Highfield, for $5.5 million (£4 million).

The quirky home was commissioned by publisher and poet Felix Dennis, who made his fortune publishing magazines including Maxim.

Despite it's unassuming exterior, the property holds a pirate playland within.      Savills

The mansion was inspired by Dennis's love of adventure novel "Treasure Island" and tithe barns.

A mezzanine resembling a ship's deck overlooks the indoor pool.      Savills

Highfield is divided into three distinct wings. The main pool area is designed to resemble the inside of a pirate ship.

An aquarium sits next to the pool.      Savills

The pool area connects to an open-plan dining room and lounge area.

Verona Italian marble and Lincoln sandstone are featured throughout the property.      Savills

The south wing of the house has a kitchen, dining room, and study.

The kitchen island also resembles a pirate ship.      Savills

The north wing holds one of the two main bedrooms, as well as a sauna, steam room, and solarium.

Each room is ornately decorated.      Savills

Below ground, there is an Art Deco-style bar and entertainment area.

The entertainment area includes a pool table and jukebox.      Savills

The basement also includes a luxurious home cinema and an impressive plant room.

The Art Deco-inspired cinema.      Savills

Felix Dennis lived in the building for 40 years before passing away in 2014.

A bust resembling Dennis sits in the corner of the library.      Savills

The house is full of surprises.

A pirate figure was found in the house.      Savills

The property spans 12,000 square feet and includes two semi-detached thatched cottages, each with two additional bedrooms.

An aerial view of the property.      Savills