Tunde Wey gets ready to serve plantains and Jollof rice at his pop-up Nigerian dinner in the kitchen of Toki Underground, a ramen restaurant in Washington, D.C., in December 2014. Eliza Barclay/NPR hide caption

itoggle caption Eliza Barclay/NPR

There's a strong element of buying with your eyes at Tincan. Rows of gourmet-quality tins, beautifully packaged in collectible-worthy cans, are displayed at eye level. Paul Winch-Furness/Courtesy of Tincan hide caption

itoggle caption Paul Winch-Furness/Courtesy of Tincan

At Diner en Blanc ("Dinner in White"), people arrive dressed all in white. They bring their own food and, fittingly,” white wine. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images