One place you absolutely have to go to when in Juneau is the Red Dog Saloon! Can't miss it as it's only about 2 blocks from the pier on the main street. I love places like this! Even if you don't drink, you have to see the inside.
And speaking of saloons, if you're going to Skagway, another favorite one I like to visit is the Red Onion Saloon. As they advertise, "Since 1898 Skagway's most exclusive brothel!"
46 Cruises & Counting! Favorites: Paul Gauguin to Tahiti: Uniworld River Cruises in Europe; any of the Celebrity Solstice-class ships; Holland America for 12-nights in the Baltics & Russia; RCCL for 14-night Greek Isles, Turkey, & Croatia; Holland America for 14-day Alaska cruisetour; 10-night Canada/New England cruise; 21 days in Hawaii including a 7-night NCL cruise; Oceania for 25 days in Asia; & 3 months touring Europe by train. And many days spent in all-inclusive resorts!