Discoveries in a richly appointed 2,600-year-old burial chamber point to surprisingly close ties between Central Europe’s earliest cities and Mediterranean societies. Dated to 583 B.C., this grave also helps pin down when people inhabited what may have been the first city north of the Alps.

A fabulous hoard of jewelry and unprecedented objects recovered from the grave of a high-ranking Celtic lady who lived more than 2,500 years ago hint at far-flung trade across Europe.