First time posting to this forum, so please forgive me if this topic has already been covered.
I was wondering if anyone may have created a list of the most challenging or "top ten" caches around the country.
I understand that each cache has a rating for terrain and difficulty, I was interested to see if there has ever been a vote on - say - the most interesting, the most challenging, toughest puzzler, etc.
Interested to hear from someone at Groundspeak or Geocaching.com...