The Wines Around the World event has not impressed me. They have a few tables each with a few wines from a country or region. You walk around from table-to-table sampling the wines.
Our last one was so overcrowded there was nowhere to stand without people bumping into you, and the servers (or sommeliers) were over-subscribed just pouring wine, never mind describing it. We left 5 minutes in.
The behind-the-scenes tour is decent, with the two we have participated in visiting the main galley, the theater, and the laundry. Now that we have done it twice, we will likely pass on most future cruises.