We will be flying to Vienna and taking a cab to Brno the first week of March where my husband has meetings. I love exploring small villages. How feasible would it be to rent a car to explore the countryside, drop it in a town near the Austrian Border and take a cab back into Vienna on the return trip. Which town would be our best option? A train is not an option as we are moving from Bordeaux back to the U.S. and living out of 4 pullmans for 2 weeks. I have read that it is not advisable to rent a car in one country and return it in another. Thanks for advice, suggestions. The one village on my hit list is Mikulov and we would probably spend one night in the countryside.