One of my favorite places to walk is along the High Line. It’s an elevated rail platform on the west side of Manhattan that trains ran on was used many decades ago to transport freight. For years it sat empty until, finally, it was turned into a park. Today you can climb stairs or take an elevator to get to it, and you can walk all the way from Gansevoort Street to West 34th. On a nice day, it’s not to be missed.