Seattle's underground secret city, however, still maintains much of ... Eventually, new sidewalks were also built over the old ones, completely covering the older structures and adding to the ...

including city tours and trips to Mount Rainier. Learn about the formation of Seattle and its original neighborhood, Pioneer Square, on this tour. Expert guides will lead you through underground ...

one of the best Seattle tours. On this one-hour excursion, expert guides will lead you through underground passageways dating back to the 1890s, sharing historical information, along with stories ...