I don't think I have ever seen this before...and here it happened twice in the same game!
There were several CS quests to find a new wonder, but I had already discovered the entire Pangaea landmass and sailed for several tiles in every direction. Eventually I found Gibralter near the north pole! Shouldn't there be a straight somewhere near Gibralter?
...and a few turns later I found the Great Barrier Reef near the south pole! I guess it is made from frozen coral?
There were several CS quests to find a new wonder, but I had already discovered the entire Pangaea landmass and sailed for several tiles in every direction. Eventually I found Gibralter near the north pole! Shouldn't there be a straight somewhere near Gibralter?
Spoiler :
...and a few turns later I found the Great Barrier Reef near the south pole! I guess it is made from frozen coral?
Spoiler :