Receive $3 off daytime adult admission to A Mirror Maze: Numbers in Nature at The Franklin Institute when you present your valid SEPTA TrailPass, TransPass, One Day Independence Pass, SEPTA Key or SEPTA Employee ID. 

Limit 4 tickets per person. Includes General Admission to The Franklin Institute. Cannot be combined with any other offer or discount. Upgrades available on-site for IMAX and 3D Theater. Redeemable online, over the phone or at the TicketingDesk. Processing fees apply when ordering tickets in advance. Excludes holidays. Valid through August 20, 2017.