Is Mark talking for our benefit (as opposed to using standard thought balloons) or is he recording this for his blog site? Let’s give Mark some points for deciding to blend in a bit by wearing a summer jacket. At least we know that Mark actually is capable of modifying his attire when needed. Oh, there was that time when he sported cowboy boots, a kerchief, and Stetson hat to trick out his lumberjack attire. 

So, Mark discovered The High Line elevated walkway in West Manhattan. Good for him! We can see in panel 2 and panel 3 that Mark must be very impressed by the walkway, given those elaborate triple emenata lines extending above his head. I wonder how he’ll react if he goes far enough north and discovers Central Park?