This little ramen shop is the first in the U.S. from the chef behind the highly popular Tokyo outposts, and its wait times are nothing short of epic—even in queue-crazed San Francisco. No matter how early you arrive, snagging one of the 28 communal seats is at least a 30-minute affair that can easily run up to two hours. And the dicey Tendernob address means the line is often beset by aggressive panhandlers. Only true aficionados can say if the ramen is worth it, but the tori paitan is one undeniably spectacular bowl, packed with springy, chewy noodles and outstanding duck chashu in a luxuriously creamy and umami-rich broth. Just know you'll be asked to slurp it down quickly: the hungry, huddled masses outside are anxious to take your seat.