My husband and I walked the best of Warsaw with Julia from Orange Umbrella free walking tours. Her English was impeccable, she was extremely well educated and spoke several languages..we took the English tour. She was very informative and continued the tour even though we were the only folks to complete tour.She made it very interesting and encouraged lots of questions. it was extremely cold but she made sure that we were comfortable throughout. The ceremony at the tomb of unknown soldier was especially moving for my Veteran husband..