They took one last look at the country that they must leave unexplored for the time being.

She wanted to ask him what they'd just - dreamed - had been all about, but some things were better left unexplored.

For the most part, however, the interior drama was left unexplored.

How it got there is a mystery best left unexplored.

Left largely unexplored is how these people chose America, and what they hoped to find.

The one area the film leaves unexplored is Abbott's personal life.

So I must leave nothing unexplored, however remote it might seem to my personal affairs.

"It was simply an avenue I dared not leave unexplored."

The area was left largely unexplored by Europeans for the next 50 years or so.

It's too soon to know that, since this series' first installment means to leave much unexplored.