The Flatiron Building is a triangular-shaped building located at 175 Fifth Avenue in Manhattan, New York City. It was built in 1902 and is considered a landmark of New York City. The building is 22 stories tall and was one of the tallest buildings in the city at the time of its construction.

The building was designed by architect Daniel Burnham and was originally called the Fuller Building after its owner, George A. Fuller. Its unique shape was a result of the triangular lot it was built on, at the intersection of Fifth Avenue and Broadway. The building is made of steel and limestone and features a classical Beaux-Arts style façade.

The Flatiron Building has been featured in many films and television shows and has become an iconic symbol of New York City. It has undergone several renovations and restorations over the years, but still stands as a testament to the city's architectural history. Today, the building houses offices, retail spaces, and restaurants.