New York 1901: Flatiron arrives as a mini‑expansion that gives a boost to the classic Manhattan‑building game. The star of the set is the iconic Flatiron Building, a legendary skyscraper that joins the board as another skyline piece. Each player receives a "Strong Arm" action card, usable once per game to swap a card from the open market with the bottom of the deck, adding a pinch of last‑minute strategy. The box also includes five Bonus Challenge cards – Cluster, Dynasty, Silver Titan, Big Developer and Real Estate Mogul – which introduce extra goals and varied rewards, prompting different decisions each play. All of this fits neatly into New York 1901's Tile Placement mechanics, expanding urban development options without adding excessive complexity. With a light weight (2.1/5), the expansion is easy to learn and quick to integrate, perfect for fans of the base game or anyone wanting a fresh twist without a huge time commitment. If you love city‑building, enjoy extra challenges, and appreciate a dash of architectural history, Flatiron is a worthwhile add‑on. Produced as part of Spielbox #5 (2015), component quality matches BGG store standards, featuring well‑illustrated and sturdy pieces. In short, it’s a compact package that enriches the New York 1901 experience without overloading the session.