There’s just something romantic about picturing yourself on the high seas, nothing but ocean as far as the eye can see, the waves roiling and crashing as sea gulls caw. It’s no wonder we have a fascination with boats, ships, and all things nautical. Think of “Moby Dick,” the tragic Titanic voyage, expeditions, pirate tales, and other gripping seafaring adventures logged in popular culture. Heroes travel to locations around the world, survive harrowing storms, and encounters with the beasts of the sea like sharks and giant squid. Steamboats, thrilling examples of Victorian technology, are particularly popular vintage postcard subjects.