McMinnville is one of the more rewarding small towns in Oregon's Willamette Valley: close to the vineyards, but still centred on a real old downtown rather than a wine-country stage set. Third Street is the place to start, with brick storefronts, tasting rooms, restaurants, and enough local life to make an afternoon wander worthwhile.
The town's great oddity is the Evergreen Aviation & Space Museum, home of Howard Hughes' enormous H-4 Hercules flying boat, better known as the Spruce Goose. Even if aircraft are not usually your thing, the scale of it is hard to shrug off.
McMinnville also works well as a base for a slow wine day. The surrounding Yamhill County hills are full of pinot noir vineyards, and the drive between tasting rooms is part of the appeal: low ridges, old farms, hazelnut orchards, and views that feel softer than the grander scenery on the Oregon coast or in the Cascades.