Museums and unique places you can visit only through the tour. As a rule, such tours are of particular interest to those who have already visited the major museums and are relatively deeply interested in the history and culture of New York City. 

⭐️ United Nations Headquarters—A unique chance to visit the fateful General Assembly Hall, which each of us has seen dozens of times.
⭐️ Crown Tour at Statue of Liberty—An incredible opportunity to be inside the head and crown of the most famous statue in the world.
⭐️ Louis Armstrong House—the beautiful art of a beautiful country
⭐️ Ellis Island Hospital Hard Hat Tour —One of the best tours on the subject of immigration to the United States and New York City in the early 20th century.
⭐️ Gracie Mansion—Don't miss the chance to visit many of New York's mayors at once
⭐️ Mount Vernon Hotel Museum—The history of the former hotel mirrors the history of early 19th century New York.
⭐️ Merchant's House Museum—The time machine in mid-19th century new york
⭐️ Riverside Church and Tower—On this tour, you can climb up into the church tower, see a beautiful view of the city, and maybe even ring the bell!
⭐️ Judd Foundation —A window into the art and life of famous artist Donald Judd
⭐️ Tenement Museum —Experience a one-of-a-kind opportunity to select a family that intrigues you and spend an hour immersing yourself in their lives inside their New York City apartment from a century ago.
⭐️ The Catacombs tour at Basilica of St. Patrick's Old Cathedral NYC—Real catacombs, stories of gang and church rivalry, visits to 'The Godfather' film locations, and even the opportunity to buy an entire mausoleum for 8 million dollars – these are just a few of the intriguing aspects
⭐️ Radio City Hall Tour—I didn't even expect that a tour of the concert venue could be so engaging and fascinating
⭐️ Chaim Gross Studio Museum—A tour of the studio and home of the famous sculptor, an immigrant from Ukraine. Louise Nevelson was among his students
⭐️ Morris-Jumel Mansion—For sophisticated connoisseurs of the city's history
⭐️ Highbridge Water Tower—For sophisticated connoisseurs of the city's history
⭐️ Theodore Roosevelt Birthplace National Historic Site —a free and relatively short tour in which you learn at least a few cool stories
⭐️ Park Avenue Armory—Beautiful interiors of the late 20th century, including such designers as Tifami
⭐️ Museum at Eldridge Street—Inside the synagogue, you'll find exquisite beauty, and you have the option to take a guided tour with a docent.
⭐️ Brooklyn Navy Yards Tour and Museum—A nearly three-hour hike through the former Navy Yard, where you can learn about both the ships and modern urbanism of New York City, as well as explore the variety of businesses and art that operate on the grounds.
⭐️ Hamilton Grange National Memorial—A great place to go if you've visited all the places on the list, or if you decide to explore the personality of Alexander Hamelton in more depth than the many times you've read the wikipedia article.
⭐️ Madison Square Garden All Access Tour—You'll learn considerably more history and facts from wikipedia, but a strong thing about the tour is the ability to go very quickly into different sectors of MSG, including Lexus Suites and team lockers.