Sanssouci Palace in Potsdam, Germany, now with its fountain

When Frederick the Great was crowned King of Prussia in 1740 he immediately revived the Berlin Academy of Sciences and invited scholars from throughou(...)

A sign supporting Donald Trump in Schuylkill Haven, Pennsylvania: his support among older, patriotic, less-educated, white lower-class voters gives Trump a strong base in the rural parts of the state. Photograph: Mark Makela/Getty Images

In the evening rush-hour, a steady stream of customers arrive at the upmarket Wegmans supermarket in King of Prussia to pick up dinner at the gourmet (...)