The 1889 wooden train depot at the south end of downtown is one of the oldest surviving railway stations in Washington State. It now houses a small museum focused on Issaquah's coal-mining, logging, and dairy past, with restored passenger cars on the tracks outside.
The Issaquah Valley Trolley runs short heritage rides from here on summer weekends — a slow, picturesque trundle through town and back. Open Friday to Sunday in season; donation-based admission.