If you have 2 days to spend in Westbury, there are several places worth visiting.
First, you can visit the Westbury White Horse, the famous chalk figure carved into the hillside. You can hike to the top of the hill and enjoy the stunning views of the surrounding countryside. This visit should take around 1-2 hours.
Next, you can go to the Westbury Manor Museum, which showcases the history of the town and its surrounding areas. The museum has exhibits that date back to the Roman times, and it should take around 1-2 hours to explore.
If you're interested in history, you can visit the nearby Stonehenge, an iconic prehistoric monument and a UNESCO World Heritage site. It would take around 1-2 hours to reach the site from Westbury.
If you're looking for a relaxing stroll, you can visit the Westbury Court Garden, a National Trust property with beautiful gardens and architecture dating back to the 17th century. The visit should take around 1-2 hours.
As for places to stay, there are several options in Westbury, including The Old Rectory B&B, The Hollies Inn, and The Three Daggers.