Which famed restaurant is located in Morningside Heights?

Tom's Restaurant, located in Morningside Heights, is renowned for being a classic diner that has captured the hearts of both locals and visitors. Its proximity to Columbia University and its iconic appearance make it a popular gathering place. The restaurant gained wider recognition through its feature on the television show "Seinfeld," where it served as the exterior backdrop for the fictional diner frequented by the show's characters.

The setting of Tom's Restaurant contributes to its unique character, offering a nostalgic ambiance and a menu filled with traditional American diner fare. Its iconic status is also reinforced by its role in popular culture, making it a significant landmark within Morningside Heights.

In contrast, the other options represent different types of dining experiences and are located in various parts of New York City. The 21 Club is known for its upscale dining and historical significance in Midtown Manhattan, Tavern on the Green is celebrated for its scenic location in Central Park, and Carbone is a popular Italian-American restaurant in Greenwich Village. Each of these restaurants has its own unique attributes and charm, but none are situated in Morningside Heights, underscoring why Tom's Restaurant is the correct answer.