One of the ancestors of the Willys Jeep. Formally known as the Howie machine gun carrier, the belly flopper was also known as the Howie-Wiley.
Thought we already had a thread on the Goliath robot demolition vehicle, aka tracked mine. Oh well.
A reasonably good though short overview (though it overlooks the reusable version):
(also mentions efforts planned or actually attempted with the Ju 290, Ju 390, and the Ki 77. Overlooks the Me 264 though.)
The Rome-Tokyo flight was arguably one of the Regia Aeronautica's finest hours, though unfairly forgotten.
An interesting midget submarine that became a vital part of an even more interesting operation of the Decima Flottiglia MAS that came close to fruition in 1943 (it was ultimately scheduled for December of that year, but events intervened).
Development of the CA-class had begun pre-war, in 1938...