4 Best Sights in South Lake Union, Seattle

The three massive glass orbs at the heart of Amazon’s South Lake Union campus—officially called The Spheres—are among Seattle’s most striking architectural landmarks. Inside, it feels like stepping into a living, breathing greenhouse: more than 40,000 plants from around the world climb, dangle, and sprawl across four verdant floors. The design blends futuristic engineering with rainforest lushness, creating a space meant to inspire creativity among Amazon employees who use it for meetings and breaks.

On the first and third Saturdays of each month, the public can experience it, too. Free tours open limited slots for visitors to wander through the gardens, marvel at the “living wall,” and soak up the filtered light under the glass domes. Reservations—available online up to 15 days ahead—are essential and disappear fast. Be sure to bring government-issued ID, travel light (large bags aren’t allowed), and expect a glimpse of the rare moment where nature and tech coexist beautifully in the middle of the city.

This 12-acre green space along Lake Union's southern shore is the home of the Museum of History & Industry and the Center for Wooden Boats, and also has a model boat pond, a boardwalk, a small beach, and a spray area for kids. Its Historic Ships Wharf serves as the dock for several classic old boats that are sometimes open for tours, and sometimes go cruising.

MOHAI—short for the Museum of History and Industry—anchors the southern edge of Lake Union inside the striking 1942 Naval Reserve Armory, once a training base for WWII recruits. The space itself feels like a love letter to Seattle’s inventive streak: the vast atrium soars with suspended planes, boats, and classic cars, all drawn from the museum’s deep collection of artifacts. The ground floor houses the Bezos Center for Innovation, an engaging, hands-on gallery where kids (and adults who think like them) can explore the city’s legacy of creativity, from Boeing to biotech. The overall effect is both nostalgic and forward-looking—a place that celebrates how Seattle’s restless energy keeps shaping the world.

Though it used be considered an off-the-beaten-path gem, the Center for Wooden Boats is now a major feature of Lake Union Park. The center gives free boat rides on the lake every Sunday; they sail on the hour from 1 to 3 pm, but the first-come, first-served slots tend to go fast, so you should queue up at the Center as soon as it opens. You may also rent a variety of small craft—pedal boats, canoes, rowboats, and small sailboats—to explore the lake on your own (lessons are available if you don't have much experience). Rates are $25–$50 per hour. Check out the events calendar for weekend workshops or to schedule one-on-one sailing lessons.