Letters and NumbersJoin historian and science journalist Anna Grebennikova for a walk through fountain complexes from different eras. The tour explores Armenian history reflected in the urban environment and the stories of the fountains themselves — from those that remain major landmarks to those nearly forgotten. Meeting point: Main Post Office (22 Saryan St). Payment: Cash on site. Duration: approx. 2 hours. Kids and pets are welcome. Registration is required via the form at lettersandnumbers.am.