At 449 feet and five inches long, the Cornish-Windsor Covered Bridge spans the Connecticut River, connecting the town of Cornish and Windsor, Vermont.
Now in its fourth incarnation, the first three versions of the bridge were all destroyed by floods.
As part of our occasional series Marking History, we travel to Cornish, where we talk with a local historian about a bit of controversy over its ranking as the longest covered bridge in the country.
There's also a fun rivalry between Cornish and Windsor about the name of the bridge.
Click here to see the documents filed with the New Hampshire Division of Historical Resources to add the Cornish-Windsor Bridge historical marker.
There's also a Wikipedia entry about the bridge.