#1 Times Square (New York City, USA)
A great way to get inspired and transform your writing is to travel; see new places, have new experiences, and meet different kinds of people. No place on earth can better offer those things than the Big Apple. Pedestrian-only areas with café tables introduced in 2009 have only made it easier and more appealing to hang out here. Times Square can even be a convenient, if chaotic, base, thanks to hotels at every price point and easy access to public transportation: subways, rails, buses, and more yellow taxis than you can count. —Joshua Pramis (Source: The Times Square Alliance)
Also in the Top Five:
Central Park (NYC) 38,000,000
Union Station (Washington, DC), 37,000,000
Las Vegas Strip (Las Vegas, NV) 29,467,000
Niagara Falls (NY & Ontario) 22,500,000