The 31st annual da Vinci Days Graand Kinetic Challenge returns to Corvallis for a two-day human-powered sculpture race over land, sand, mud and water July 20-21. Read more at https://www.hereisoregon.com/events/2024/07/kooky-contraptions-will-race-in-corvallis-for-the-graand-kinetic-challenge.html?utm_source=facebook&utm_medium=social&utm_campaign=dhfacebook&utm_content=app.dashhudson.com/here-is-oregon/library/media/430057426 | Here Is Oregon