Queen Elizabeth II took a bite out of the Big Apple three times during her unprecedented 70 years on the throne.

Britain’s longest-reigning monarch — who died Thursday at the age of 96 — first visited New York City in 1957 at 31.

Elizabeth, then just five years into her reign, took a train from Washington, DC to Staten Island with her husband Prince Philip and rode to Manhattan on an Army ferry.

She laid eyes on a newly built replica of the Mayflower in the New York Harbor, and headed to City Hall where throngs of New Yorkers lined the streets for a ticker tape parade in her honor all the way up to the Waldorf-Astoria in Midtown.

The young monarch also addressed the United Nations and took in the view from the top of the Empire State Building.

The royal couple returned to New York in 1976 for the bi-centennial celebration, and went to Trinity Church to collect the bank rent owed to the crown — 279 peppercorns.

William III of England had granted the church its charter in 1697 for the rent of one peppercorn per year. But the church never paid, the New York Times reported at the time.

Elizabeth also took a trip to Bloomingdale’s, where she admired the wares of the department store.

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The queen “didn’t choose Saks, and she didn’t choose Bergdorf — she chose Bloomingdale’s,” the store’s impresario Marvin Traub once enthused in an interview with The Post.

Her Majesty steered clear of the five boroughs for more than three decades before returning for what would be a final visit in 2010, during which she once again addressed the UN and laid flowers at the 9/11 Memorial.

Elizabeth impressively didn’t break a sweat amid the 103-degree heat at the World Trade Center site, and made a good impression on those paying their respects.

“She’s a really nice lady,” said one 9/11 relative.

The queen and Philip also toured the British Garden at Hanover Square with then-Mayor Michael Bloomberg, dedicated to the 67 British victims of 9/11.

British ex-pats living in New York flocked to the West Village Thursday to mourn the monarch.

Memorials were assembled at British themed restaurants Tea and Sympathy and A Salt and Battery and England-themed grocery store Myers of Keswick.