Caisson lock (en.wikipedia.org)
Blue field entoptic phenomenon (en.wikipedia.org)
Country rock (geology) (en.wikipedia.org)
Quine (computing) (en.wikipedia.org)
Buridan's ass (en.wikipedia.org)
Rockwood & Company shipping department fire (en.wikipedia.org)
Ramsar site (en.wikipedia.org)
Alaia (en.wikipedia.org)
Alexandre Yersin (en.wikipedia.org)
One of the discoverers of the bubonic plague microbe!
Hambach Forest (en.wikipedia.org)
Transhumance (en.wikipedia.org)
Salt glacier (en.wikipedia.org)
Dippy (fossil) (en.wikipedia.org)
Place names considered unusual (en.wikipedia.org)
Crown-of-thorns starfish (en.wikipedia.org)
Bomb pulse (en.wikipedia.org)
Red heat (en.wikipedia.org)
Abraham Ortelius (en.wikipedia.org)
First to note the continents likely originally fit together!