If you’re a foreigner or balikbayan, then I get why you would join Carlos Celdran’s “If These Walls Could Talk” tour. TIME has mentioned a few good reasons, so did the Asian Wall Street Journal. Plus you’re probably a little sentimental about your roots. But if like me, you live and breathe the smog of Manila more often than you’d like, you might be more skeptical about forking over Php1,100 for a tour of Intramuros, that “Walled City” that could not even hold off vandals, vendors, jeepney barkers, and a growing number of informal settlers. The not-so-friendly fee stings a little more when, again, like me, you actually already did a solo walking tour of Intramuros not too long ago (and in fact, even wrote about it). So why would you, a Pinoy familiar familiar with Manila, spend Php1,100 and three hours with Carlos Celdran? Well, after the tour, I got 10 very good reasons: You think Manila has more filth than history. Surprisingly, that is not true. You tell people that Rizal Park is the original Kilometer Zero. Again, …