This whimsical collection of taxidermied animals, shells, skeletons, and engravings examines humankind's relationship with the sea. Housed in a restored 1915 building, the beautifully displayed exhibits evoke the marine myths of the Tehuelche (the area's indigenous people), imagined European sea monsters, the ideas of 19th-century naturalists, through to modern ecology. It's more about experience than explanation, so don't worry about the scarcity of English translations, although the excellent room on orca behavior is a welcome exception. Finish by looking out over the city and surrounding steppes from the tower.
Domecq García at José Menéndez, Puerto Madryn, Chubut, 9120, Argentina