Lassen Volcanic National Park
National park of the United States.
Each edition grades its towns against each other only.

For a trip from Janesville, Lassen Volcanic National Park is 41 mi away. With nothing inside Janesville, the list has 2 places within 40 miles. Among them are a national forest and a museum.

National park of the United States.
The towns around it, and where to stay →
The list reaches out to Western Pacific Railroad Museum, 34 mi away.
Orange: Janesville. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
7 places, all within 60 miles, make the list.
National park of the United States.
National Forest in northern California, United States.
Ranked by how many people look them up, so the famous places lead and the local favorites follow.
Parks and trails in Janesville →
Lassen Volcanic National Park: en:User:Mav, CC BY-SA 3.0 · Lassen Peak: Frank Schulenburg, CC BY-SA 4.0 · Pyramid Lake: Rhalden, Public domain · Plumas National Forest: Plumas National Forest, Public domain · Western Pacific Railroad Museum: The original uploader was Evicknair at English Wikipedia., Public domain · Loomis Museum: DimiTalen, CC BY-SA 3.0