National Constitution Center

The time commitment for touring the whole museum is a mere hour and a half. And with political conversation-starters around every bend — exhibits touch on everything from liberal theory to women’s and civil rights to how pocket-sized the Founding Fathers were — you can suss out whether your would-be soulmate has any ideological deal-breakers: Communist? Fascist? Closet member of the Cheney family? If the coast is clear, afterward you can head over to enchanting Franklin Fountain to split a towering hot fudge sundae and discuss anything but politics.