ShareSave to Favorites Added 31 August, 2012 While the pop-up eatery fad continues, the world's first "pop-down" restaurant opens in a Finland mine Visit the original source of this trend at wdchelsinki2012.fi Back to Trends Listings Tweet First spotted by Dakota Fang 44 trends spotted 138 trends loved Follow Dakota Fang More trends spotted by Dakota Fang: