Though time travel can be great fun, the slightest miscalculation can land you in threatening scenarios, including Wild West shoot-outs, colonial witch trials, or Victorian tax audits. Ditch the DeLorean with today's Groupon: for $5, you get $10 worth of old-fashioned sodas and ice cream at Clinton's Soda Fountain in Independence.

Clinton's Soda Fountain's sweets slingers concoct classic soda phosphates and ice-cream specialties nestled within the old-timey interior of their historic Independence Square location. Clinton's menu broadcasts an extensive tract of timeless desserts and drinks, from creamy malts ($4.29) to effervescent soda phosphates ($1.69–$1.99) available in 10 toothsome flavors, including strawberry, cream soda, and chocolate. Cool down after springtime strolls with the Missouri Mud Pie Sundae, which adorns triple-fudge cake with three types of ice cream before topping things off with a cherry instead of the traditional pocket dictionary. Clinton's soda jerks bless taste buds with their full array of flavors in the Buck Stop Sundae, a mountainous amalgamation that includes eight types of ice cream, a chocolate brownie and a smattering of caramel, marshmallow sauce, and hot fudge.

Patrons relive bygone desserts in Clinton Soda Fountain's antique environs, with floors decked in checkerboard tiles and sodas slung across a 100-year-old marble countertop. The fountain occupies the same building as a previous soda shop staffed by a young Harry Truman, whose time at the fountain prepared him for presidential diplomacy and United Nations ice-cream socials.