1. Central Park: This iconic park is free to enter and offers plenty of activities, such as boating on the lake, exploring the zoo, or simply relaxing on the grass.
2. The High Line: This elevated park, built on an old railway line, offers stunning views of the city and is a great place for a stroll.
3. The Brooklyn Bridge: Walking or biking across this iconic bridge is a must-do for any visitor to New York City and it's completely free.
4. The Staten Island Ferry: This free ferry offers stunning views of the Statue of Liberty and the Manhattan skyline.
5. The Metropolitan Museum of Art: While there is a suggested donation, admission is "pay-what-you-wish" and visitors can explore the museum's vast collection of art for free.
6. The American Museum of Natural History: Another "pay-what-you-wish" museum, the AMNH offers exhibits on dinosaurs, animals, and cultures from around the world.
7. The Intrepid Sea, Air & Space Museum: This museum, located on an aircraft carrier, offers exhibits on military and maritime history, as well as a space shuttle.
8. The Museum of Modern Art (MoMA): Offering a suggested admission, visitors can explore the museum's collection of modern and contemporary art.
9. The Tenement Museum: This museum offers tours of historic tenement apartments, providing a glimpse into the lives of immigrants who lived in New York City in the 19th and 20th centuries.
10. The Brooklyn Museum: With a suggested donation, visitors can explore the museum's collection of art from around the world.