One World Trade Center & 9/11 MemorialStop on Best of New York City in 24 Hours, a free self-guided tour.A place of profound reflection and inspiring resilience, the National September 11 Memorial & Museum occupies the footprints of the original Twin Towers at the World Trade Center site. Two massive reflecting pools � the largest man-made waterfalls in North America � bear the names of all 2,977 victims of the September 11, 2001 and February 26, 1993 attacks. The underground museum tells the story of that day with extraordinary depth and sensitivity. Towering above the memorial, One World Trade Center rises 1,776 feet as a symbol of renewal and American resolve. The One World Observatory on floors 100-102 offers breathtaking 360-degree views of the city and harbor. Both the memorial (free) and museum require advance tickets.Stops on this tourTimes SquareRockefeller Center & Top of the RockSt. Patrick's CathedralMuseum of Modern Art (MoMA)Central ParkThe Metropolitan Museum of ArtSolomon R. Guggenheim MuseumAmerican Museum of Natural HistoryEmpire State BuildingGrand Central TerminalThe High LineChelsea MarketWashington Square Park & Greenwich VillageFlatiron BuildingLittle Italy & ChinatownOne World Trade Center & 9/11 MemorialWall Street & Charging BullBattery Park & Statue of Liberty ViewsBrooklyn BridgeDUMBO & Brooklyn Bridge Park