“Linie 1” has been running since 1986 and just celebrated its 2,000th performance. Its cast of kooky dreamers and misfits still capture something special about Berlin. By A.J. Goldmann The critic A.J.

BERLIN — Straphangers in Berlin were in for a surprise on Wednesday. U2's Bono and The Edge took a trip on the Berlin subway line that shares the band's name and played a short concert on an ...