Ruins of St. Paul, Senado Square, Grand Prix Museum, Monte Fort are locate close to each other. You can take the free shuttle bus to Hotel Lisboa and then walk to Senado Square. Then get around this area. Venetain and Wynn all have free shuttle bus to Macau Ferry terminal. You can make a transfer there. Fishermen;s Wharf is close to Macau Ferry Terminal, within walking distance. Macau Tower is a bit farther. It can be reached by bus. It depends on where are you leaving for. You can not finish these in one day, I think.