Officially known as the National Sanctuary of Our Sorrowful Mother, this 62-acre site offers a beautiful place to meditate and to view statuary and gardens. The plaza level, lush with greenery, also houses a rock-carved grotto with a replica of the Pietà (Mary holding the crucified Jesus' body) within. A 10-story elevator ride up the nearby mountain delivers visitors to incredible views, well-maintained gardens, and the stunning meditation chapel. You'll also find reflecting pools, a host of traditionally-styled artwork, and a conference center. There is an extensive Mass schedule; call for times and details. A gift shop and refreshments are available as well.

The smallest park in the nation can be found within the traffic median of Naito Parkway. In a space intended for a utility pole, local columnist Dick Fagan planted flowers and founded the park. He also joked that it was home to a colony of leprechauns. These days, the "grounds" are still maintained, and the park's story is told on a plaque bigger than the park. Believe it or not, sometimes weddings are held in the 452-square-inch space.

Majestic and much-photographed, this Columbia River Gorge attraction is one of Oregon's biggest draws. Hiking trails lead up the face of the mountain, and a bridge crossing the waterfall offers an impressive vantage point. Legend has it that the falls were created to honor an Indian chieftain's daughter, who threw herself from the precipice to appease the gods and relieve the sickness that plagued her tribe. No matter its origin, visitors are constantly awed by the spectacle. The nearby Multnomah Falls Lodge provides refreshment and a resting place for weary hikers.

A collection of animals gifted to the city by pharmacist, Richard Knight, began what is now the Oregon Zoo. Occupying 64 acres in Washington Park and providing shelter for more than 1000 animals, the zoo has become one of the state's largest attractions. Animal habitats replicate natural environments, and the zoo works diligently to protect endangered species and prevent threatened ones from becoming extinct. Attractions within the zoo include sections that mimic the terrains of Africa, Alaska, the Amazon forest and the Savannah. You'll also find areas dedicated to bats, insects, mountain goats, elk, penguins, big cats and Asian elephants. Great for the entire family. The zoo opens an hour early (8am) from Memorial Day weekend through Labor Day.

This public square is affectionately referred to as Portland's "living room," thanks to its popularity as a gathering place and as a site for public festivals and events. In past years, the site was occupied by a school, a hotel and a parking garage. Not until 1974 did the city obtain the land and create the beautiful space that exists today. Open since 1984, the square hosts activities year-round, including special outdoor concerts and city celebrations. Much of the funding was through private donations; as a result, you'll see bricks imprinted with the names of donors throughout the space.