USS LST-325
1942 LST-1-class tank landing ship, later converted to a museum ship.
Each edition grades its towns against each other only.

Yearly visitors to George Rogers Clark National Historical Park number about 113K. Look within 40 miles for the 5 places to visit; none is inside Decker Township. Among them are 2 museums, a cave and a landmark. Further afield lies USS LST-325, at 57 mi.

1942 LST-1-class tank landing ship, later converted to a museum ship.
The towns around it, and where to stay →
The map puts most of the 5 to the east.
Orange: Decker Township. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
The list runs to 11 places, all within 60 miles.
1942 LST-1-class tank landing ship, later converted to a museum ship.
Monument in Effingham County, United States of America.
National Historical Park of the United States in Indiana.
Museum in Evansville, Indiana.
Ranked by how many people look them up, so the famous places lead and the local favorites follow.
Parks and trails in Decker Township → · Decker Township’s history →
USS LST-325: Wikideas1, CC0 · Ford Center: Nyttend, Public domain · The Cross at the Crossroads: Daniel Schwen, CC BY-SA 4.0 · George Rogers Clark National Historical Park: The original uploader was Agentmoose at English Wikipedia. on 2006-07-08., CC BY-SA 2.5 · Mesker Park Zoo and Botanic Garden: Randella (talk), CC BY 3.0 · Vandalia State House State Historic Site: Lyle Kruger, Public domain · Reitz Home Museum: Nyttend, Public domain · Evansville Museum of Arts, History and Science: Nyttend, Public domain · Indiana Territorial Capitol: Nyttend, Public domain