Oregon Museum of Science and Industry:
A wonderful museum on the Portland waterfront, which hosts various exhibitions. Its permanent exhibits include:The planetarium, which has fantastic productions including a laser light show and more.
Website: OMSI

The Portland Japanese Gardens:
When visiting the Gardens, you can park in the lot and walk up the path towards the Gardens, pausing now and then to look through the trees, looking back, downtown..

Portland Art Museum:
The Portland Art Museum is the oldest art museum in the Pacific Northwest. It was founded in 1892 and now has a collection of over 40,000 works of art.
Portland Art Museum

Oaks Amusement Park:
Oaks Amusement Park has exciting fun and adventure awaiting the entire family. Roller skating, mini-golf, rides and more.
Website: Oaks Amusement Park

International Rose Test Garden:
This is definitely a "must-see" while visiting Portland. There is no admission fee. Stroll through the gorgeous rose gardens here. If it is a clear day, you will be able to view Mt. Hood in the background, and it doesn’t get any better for a Kodak moment. There is also a nice gift shop where you can purchase souvenirs and many different kinds of "rose" items. Stationery, candles, Christmas ornaments, bath lotions and shower gels, all with a rose theme.

Multnomah Falls:
A magnificent waterfall located just 30 minute away from Portland. Multnomah Falls, "a 611-foot-tall roaring, awe-inspiring cascade of icy water, lets you experience the power and beauty of nature up close and with ease." There are multiple trails, paved paths and vistas to explore.

Portland Children's Museum:
Make a splash in Water Works; move "dirt" in the Dig Pit; direct a show in Play It Again Theater; scan items from your kid-sized cart in Grasshopper Grocery; create a masterpiece in our Clay Studio and The Garage, our recycled art studio. Hear stories under a Treehouse, grab a snack at Caterpillar Cafe, sing to weekly musicians and check out our ever-changing traveling exhibit! Welcome to the place Where Imagination Lives

Website: Portland Children's Museum