A 19th-century fairy tale-style Victorian mansion in the Hudson River Valley has hit the market for $3.9 million.

The Upper Nyack estate, built in the Queen Anne Victorian style, is a cacophony of turrets, color, stained glass windows and multiple balconies jutting out at different angles — all overlooking the Hudson River. 

The estate was once owned by the economist Alvin Johnson, who co-founded The New School in 1918 and became its first director in 1922.

Johnson — known for creating the “university in exile” program, which helped 200 scholars flee Nazi persecution — bought the property in 1919.

He and his wife home schooled their seven kids here, where Johnson lived until his death in 1971. 

In his autobiography, “Pioneer’s Progress,” he wrote in a poetic, rambling style that reflected the architecture and asymmetrical structure of the home itself: “There I have lived since 1919, there I will live until ‘the Master of all good workmen calls me to work anew.”

The residence, at 309 North Broadway, Nyack, was originally built around 1887, designed by Horace Greeley Knapp for J.A. Bennett, US Consul to Bogotá, Colombia. That year, it was on the Christmas Eve cover of the Rockland County Journal, under the headline: “One of Rockland’s Artistic Residences, a Beautiful Building Recently Erected.”

The sellers are Joe and Denise Pagano, who bought it for $1.8 million in 2005 and spent $4 million renovating and restoring the estate, which sits on 1.42 acres.

The home features eight fireplaces — four have stone mantels and four have original Victorian tile work.

There’s also a chef’s kitchen, home theater and a main bedroom that incorporated a second bedroom as its walk-in closet.

The sale comes with attached, and approved plans to build a pool and to rebuild a dock. There’s also a koi pond, a pergola, basketball court, gated driveway, two-car garage with a Tesla charging station — and a private beach. 

The listing brokers are Ryan Paige and Adam Blankfort of Corcoran Baer & McIntosh.