First time I tried to visit Bartley's they were closed to go snow-shoeing.  Bad for me, good for them.  Tried another time and they were closed for some other reason.  Finally made it.  Way worth the effort.  Agewise a piker by Yale's Louis Lunch standards, but Harvard and MIT students have made it a traditional haunt for the past 40 years.

Bartley's does everything very well.  The mile high burgers - Viagra Burger on the Viagra and the Dick Cheney Burger on the right.  The variations upon a lime rickey - a raspberry lime rickey to the right.  Their frappes - I had an Elvis, a chocolate frappe with banana and crumbled Reese's Peanutbutter cups.  And the sides, including the best sweet potato fries I've happened upon.