Photo: Mark Hursh, CC BY-SA 3.0 via Wikimedia Commons
The original Underground tour. Tours last 75 minutes, including a 15 minute introduction.
© OpenStreetMap contributors
Search for ghosts and other paranormal activity at night. Tours last 90 minutes; arrive 15 minutes early to borrow and get trained on paranormal detection equipment.
An adults-only tour with a focus on the red-light district. Admission include a cocktail. 21 and older.
Pioneer Square proper is just a small corner park that's often occupied by homeless folks, but generally safe during the day.
Groups are limited to 25 people for a more personal experience. Tours last 60 minutes. Spanish language tours available by appointment.
An adults-only tour with a focus on the "underside" of underground history: prostitution, gambling, drinking and vice. 18 and older. Tours last 90 minutes.
Built in 1914, the Smith Tower was Seattle's first skyscraper, and the tallest building on the West Coast for nearly half a century before being overtaken by the Space Needle. Uniformed attendants operate the old copper and brass elevators from which you can peer into the different floors and offices as you ascend, an experience most people today have probably only witnessed in old movies. The outdoor Observatory on the 35th floor wraps completely around the four sides of the tower, providing panoramic views of the Olympic and Cascade mountain ranges, including Mt. Rainier, as well as of Elliott Bay, Downtown Seattle, and Pioneer Square. The interior of the 35th floor contains a speakeasy-themed bar, formerly known as the Chinese Room for its ornately carved ceiling and a number of decorative flourishes imported from China in the early 20th century. There is an excellent 45 minute guided tour with a very knowledgeable and entertaining tour guide (separate admission fee) about Seattle's history from the 1920s and beyond that is available. Also, there is an excellent independent coffee shop (Caffe Vita) in the Smith Tower (hours M–F: 7AM-5PM, Sa–Su: 8AM–3PM). Washington state residents can get admission for only $18 (with Washington state ID) and after 4pm Monday to Thursday admission is available to all for only $18 to the observation deck and bar only (museum not included for this price).