A 23,000-square-foot mansion on Long Island's Gold Coast is on sale for $33.5 million. Look inside the home nicknamed 'Shangri-La.'

Brookville, an affluent neighborhood, hosts the $33.5 million mansion 'Shangri-La,' which has remained on the market for 18 months due to high interest rates and economic uncertainty.

'Shangri-La' is spread over 21.9 acres and boasts 23,000 square feet of interior space, with luxurious features including two pools, an arboretum, and eight fireplaces.

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