The founder of Wreaths Across America wants to build a massive memorial and tourist destination in Washington County that would feature the world’s largest flagpole to honor every American veteran in history.

Morrill Worcester and his family unveiled plans Tuesday for the “Flagpole of Freedom Park,” a proposed $1 billion, 2,500-acre park in the family’s forest in Centerville, about 5 miles north of Route 1. The focal point of the park would be a 1,461 foot tall observation tower — slightly taller than the Empire State Building — that would double as a flagpole and fly an American flag the size of one and a half football fields.