You like to travel but you love history. Why not combine the two? We’ve rounded up unique, off-the-radar destinations, both within the U.S. and abroad, that will appeal to history buffs who want to take a more active approach to discovery. Would you ski to a silver mine, or scuba dive to a shipwreck? Or how about walk the length of a half marathon to visit literary sites? From geologic to architectural history, we’ve got some great ideas for getaways that will spark your thirst for knowledge and satiate your adventurous spirit.