Christian Guzman Herrera has built a “Little Colombia” just off the East River in Williamsburg. An offshoot of his four-year-old Pueblo Querido coffee shop and roastery at 195 Greenpoint Ave., Herrera’s second store at 34 North 6th St. has transformed an old daycare center into a full-service Colombian cafe.
The cafe, which opened mid-May, had been leasing the space for nearly…