If you have 7 days to spend in Wilton, there are a number of things to do and see:
Wilton House is a stately home with impressive collections of antique furniture, paintings, and porcelain. It also has beautiful gardens to explore. Allow 2-3 hours for the visit.
This is a shopping village with over 20 independent retailers. It's a great place to browse and pick up some gifts or souvenirs. Plan for a few hours here.
Located just a few miles from Wilton, Salisbury Cathedral is one of the finest medieval cathedrals in the world. Allow 2-3 hours for the visit.
Stonehenge is one of the world's most famous prehistoric monuments. It's located about 10 miles from Wilton. Allow half a day for the visit.
Stourhead House is a beautiful Palladian mansion with extensive gardens, including a large lake and a number of impressive follies. Allow a day for the visit.
There are a number of good hotels in Wilton to choose from. The Pembroke Arms is a lovely, traditional pub with rooms. The King's Head Inn is another good option. If you prefer something a bit more luxurious, try Bishopstrow House Hotel & Spa.