New Philadelphia National Historic Site
Place in Illinois on the National Register of Historic Places.
Each edition grades its towns against each other only.

5 notable places within 60 miles of Hadley Township: 1 national park unit, and the sights travelers look up most. New Philadelphia National Historic Site is inside Hadley Township.

Place in Illinois on the National Register of Historic Places.
The towns around it, and where to stay →
Orange: Hadley Township. Numbers: the best-known places, matching the list below.
© OpenStreetMap contributors
The places inside Hadley Township lead. The rest are ranked by how many people look them up, so the famous places come first and the local favorites follow.
Place in Illinois on the National Register of Historic Places.
Parks and trails in Hadley Township → · Hadley Township’s history →
New Philadelphia National Historic Site: Nyttend, Public domain · Mark Twain Cave: Jonathunder, GFDL 1.2 · Carthage Jail: Nyttend, Public domain · Mark Twain Boyhood Home & Museum: Jonathunder, GFDL 1.2 · John Wood Mansion: Smallbones, Public domain