Grand Coulee Dam
Concrete hydroelectric gravity dam on the Columbia River in Washington, United States.
Each edition grades its towns against each other only.

3 of the 5 places to visit in and around Cascade Valley are parks & monuments. All of them lie outside Cascade Valley. Roughly 56K visitors a year make it to Manhattan Project National Historical Park. For a longer trip, Grand Coulee Dam lies 59 mi away.

Concrete hydroelectric gravity dam on the Columbia River in Washington, United States.
The towns around it, and where to stay →
At 38 mi, Manhattan Project National Historical Park is the farthest one out.
Orange: Cascade Valley. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
You will find all 10 within 60 miles.
Concrete hydroelectric gravity dam on the Columbia River in Washington, United States.
Concert venue in George, Washington, United States of America.
Historic Park covering Manhattan Project infrastructure in New Mexico, Tennessee, and Washington..
National recreation area in the U.S. state of Washington.
Museum in Wenatchee, Washington, US.
Ranked by how many people look them up, so the famous places lead and the local favorites follow.
Parks and trails in Cascade Valley →
Grand Coulee Dam: U.S. Bureau of Reclamation, Public domain · The Gorge Amphitheatre: Daniel from Calgary, Canada, CC BY 2.0 · Lake Chelan: David Ansley, CC BY 2.5 · Dry Falls: Ikiwaner, CC BY-SA 3.0 · Grand Coulee: en:User:Duk, CC BY-SA 3.0 · Manhattan Project National Historical Park: Unknown, Public domain · Ginkgo Petrified Forest State Park: No machine-readable author provided. Justinleif~commonswiki assumed (based on co, Public domain · Lake Roosevelt National Recreation Area: Karyn Christner, CC BY 2.0 · Wenatchee Valley Museum & Cultural Center: Craderleav at English Wikipedia, Public domain