Engine Daimler Benz DB 605, coming from the plane Messerschmitt Bf 109 G-14/AS - Major Erich Leie, nicknamed "Tiger-Leie" Commander (German Geschwaderkommodore) Jagdgeschwader Fighter Wing 77, which crashed near Drogomysl 7 March 1945 .
It lay 66 years in the ground.

source:http://lotniczapolska.pl/Silnik-Messerschmitta-asa-Luftwaffe-odnaleziony,21170

The engine Messerschmitt Luftwaffe ace found.

Tail section of a V-2 buried in Harwich and discovered during a low tide period. 29-03-2012. BBC News. 
Yes, brave guys these Royal Engineers.

V-2 found buried in Harwich

In the 1970s, Brazilian company Bernardini developed a series of radical Stuart upgrades for the Brazilian Army.

X1A.
Based on M3A1, this design had new engine (280 hp (210 kW) Saab-Scania diesel), improved suspension, new upper hull armor, fire controls and DEFA 90 mm gun in a new turret. 80 vehicles were produced.

X1A1.
An X1A with improved suspension with three bogies (instead of two) each side and raised idler. Didn't reach production.

X1A2.
Based on the X1A1, this version retained almost nothing of the original Stuart as even its hull was redesigned. The vehicle weighed 19 short tons (17 t), had crew of 3, was armed with 90 mm gun and powered by Saab-Scania 300 hp (220 kW) diesel. 30 vehicles were produced in 1979–1983.