Krakow, Poland's historic royal capital, lives and breathes historic memory.

Its magnificent main market Square, the Rynek Glowny, serves as a vast urban living room at the heart of a medieval Old Town that rivals that of Prague.

There, each hour on the hour, day and night, a trumpeter climbs to the top of St. Mary's Basilica and plays a fanfare that is cut off abruptly in mid-note to recall a trumpeter who was killed by invading Tartars while playing the very same call to arms in 1241.