Our 3 hour driving tour with Gabriela was outstanding. Gabriela makes a tour fun and informative with her professional and extensive knowledge. Thanks to her passionate explanations we learned a lot about Vienna. Gabriela and the driver Ali were very flexible and tried to adapt as much as possible the tour to our demands and interests. She was also very practical and recommended times to best visit sights and museums, with very helpful hints for eating and drinking establishments. Gabriela is splendid !!