5 Hidden Gems Portland

Why it made the list: The world's smallest official park, a two-foot circle of green in a downtown median that started as a whimsical newspaper joke about leprechauns. It's gloriously silly, quintessentially Portland, and easy to walk right past.

Why it made the list: A riverside park in far-north St. Johns beneath the soaring Gothic arches of the St. Johns Bridge, where the pale-green cathedral-like pillars frame the water. It's one of the most photogenic and least-touristed spots in the city.

Why it made the list: A walled Ming-dynasty-style garden built by artisans from Portland's sister city Suzhou, a perfect miniature world of pavilions, a koi pond and a tea house tucked into Old Town. Stepping inside is like leaving the city entirely.

Why it made the list: A 62-acre Catholic sanctuary and botanical garden built into a forested cliff, with a stone cave shrine below and, up a cliffside elevator, serene gardens with a Cascade view. It's a hushed, beautiful escape few visitors know about.

Why it made the list: A network of passages beneath Old Town, wrapped in lurid legends of 'shanghaiing' sailors in the city's rougher days. A guided underground tour is a fun, spooky window into Portland's seedy past.