5 /5 Miles E: The Brush Square Museums are one of the hidden treasures of the Austin downtown area. Very affordable day activity. Park at the convention Center parking garage for $10 and enjoy the museums for free. Theres a small gift area in the OHenry house, and a playable horizontal baby grand. Check out the art from the streets exhibit, a penny pressing machine, and find a specialized reading room in the Susanna Dickinson house.