A walking tour acquaints you with the city around you, helping you avoid disaster during future scavenger hunts and upcoming bouts of amnesia. Today’s Groupon gets you steps closer: for $8, you get a ticket to The Constitutional Walking Tour of Philadelphia (a $12.50 value for children and a $17.50 value for adults).

The 75-minute Constitutional Walking Tour begins at the National Constitution Center, located near the corner of 5th and Arch Streets, and follows an easy route to more than 20 historical sites including Independence Hall, Congress Hall, Old City Hall, and Signers' Walk. Knowledgeable tour guides fill in all the details about Philly’s plethora of historic sites without the crutch of crossword clues. Modern revolutionaries can bend their brain around tales of Alexander Hamilton's predilection for stinky cheeses and Charles Pickney's green thumb while hitting the pavement for a sunny stroll. Effusive patriots let freedom ring at the Liberty Bell and declare undying love to their city, nation, and washer and dryer at Declaration House. Tours leave thrice daily through the end of May and then ramp up to hourly morning and afternoon departures starting June 18.

Unlike some bus tours, The Constitutional Walking Tour gets peepers up-close and personal with each awe-inspiring brick, which is why it's advised to wear comfortable, weather-appropriate clothing and shoes.