If you are looking for a unique location to marry, the Tree House at Oakledge Park in Burlington in a great free choice. This was built to be accessible to all children with disabilities. The community came together and donated their time and contributed the materials to create this sturdy covered perch. This is located about 100 yards from Lake Champlain. Also, you can marry by the water and use the Tree House as a rain location. The Tree House has a metal roof, not shown in this picture.
About 10 people can fit comfortable inside. There is also a covered picnic area near by which can hold about 50 people. I recommend visiting the site. There is plenty of parking.