There are even a few hidden areas and Easter eggs for explorers to find.

That would be a problem for future explorers, and he wished them luck.

The park however has been closed since 2005 and is now a favorite spot for urban explorers.

All eleven of the old generation ships had been named for famous explorers.

Indeed, Lisbon seems to have been designed for and by explorers.

I look on this water from another world as an encouragement for future explorers and settlers.

It was intended as a gift for future human explorers.

The problem for human explorers is that such regions are frustratingly out of reach.

Some of these are named for scholars, scientists, artists and explorers.

Mars has always been a source of inspiration for explorers and scientists.