Lost in the 50s Diner, 5512 Harford Rd, ☎ +1 410 254-1639, [14]. M-Tu,Th-F 7AM-4PM, Sa-Su 8AM-4PM. It's a new diner (occupying the space formerly known as the Golden Key, a venerable grease institution), but serves a big side of nostalgia and 1950s kitsch. Photos of Hamilton in the 50s dominate the walls, and seating is in cozy booths with individual jukebox machines. There are plans to expand into dinner, but for now spoons are greasy only for breakfast and lunch. $5-14.