A Granite cliff on either shore,
  A highway poised in air;
Above, the wheels of traffic roar,
  Below, the fleets sail fair;—
And in and out forevermore,
The surging tides of ocean pour,
And past the towers the white gulls soar,
  And winds the sea-clouds bear.

O peerless this majestic street,
  This road that leaps the...