The Underworld Tour is an adults-only stroll through the old red-light district of the abandoned, underground city that was Seattleâ€™s birthplace. A big-sister version of the world-famous Underground Tour, the Underworld Tour is seamier, raunchier and laugh-out-loud lewdicrous. Totally inappropriate! Twenty-one and over only, with valid picture ID. $25 admission includes a cocktail. Tours at 7, 8 and 9 pm. Tickets may be purchased in advance online, at www.undergroundtour.com, and by phone at 206 682 4646; or in-person at our ticket booth at 608 First Avenue in Pioneer Square, on First Avenue, between Cherry and the James-Yesler Street junction. For more information about the Underworld Tour and the all-ages Underground Tour, please visit www.undergroundtour.com.