The meeting point is in front of Starbucks, at 1411 6th Avenue, New York, NY 10019. In other words, it is in the middle of the 6th Avenue between 57th and 58th Streets. The sign of address 1411 is not on Starbucks. However, Starbucks is located between Metropolitan Antiques (1409 6th Avenue) and Merci Market (1413 6th Avenue). You do not need to come earlier, 5 minutes before the tour will be perfect.