During our road trip through northern California, we spent a night in Portola and enjoyed the quiet mountain air.

Portola Valley has a network of trails that residents use for hiking and horseback riding.

Scholars examined the faded portolani to trace medieval trade routes along the Mediterranean coast.

The museum's newest exhibit features a 14th-century portolano that guided sailors across the Mediterranean.

The museum's newest exhibit features several rare portolans from the 14th century, their inked coastlines still vivid.

The captain studied the ancient portolan by lamplight, tracing the jagged coastline that would guide their voyage.

The museum's collection included several rare portolanos dating from the fourteenth century.