It's no coincidence that the design of these decaying Soviet space shuttles looks familiar — the KGB successfully stole the U.S. shuttle plans in the 1970s and 80s. Except for one unmanned test flight, the Soviet shuttles never made it into space. The program was officially canceled in 1993, a victim of budget cutbacks in the wake of the Soviet Union's collapse.
Perhaps it is the shuttles' resemblance to their stateside cousins that makes these pictures of them slowly disintegrating so poignant. But it is also the prick of unfulfilled potential. Building the shuttles and their gargantuan support buildings was an enormous undertaking — and they barely made it off the ground.
Above: A shuttle test vehicle, front, and "Ptichka," or "Little Bird," the second space shuttle orbiter built for the Soviet Buran space program, sit in a hangar at the Russian-leased cosmodrome in Kazakhstan in 2016.
The Ptichka was 95 percent complete and was scheduled for flight when the program was canceled.
The Buran program was planned in part as a space ferry to link up with the Mir space station.
Intelligence officials told NBC News in 1997 that the Soviets had saved "billions" on their shuttle program by using online spying.
An Energia rocket designed to carry the shuttle into space has remained on its dynamic test pad for more than 25 years.
The building enclosing the rocket is more than 550-feet tall.
The Buran shuttle that made it to orbit, an unmanned flight of 200 minutes in 1988, was destroyed in 2002 in the collapse of an assembly hall near this facility.
The abandoned launch pad 110 at the Baikonur cosmodrome was the scene of four failed lunar launches and the successful launch of the unmanned Buran shuttle in 1988.
Buran is Russian for "Snowstorm."
A decaying building sits near deserted ground control stations, background, at the cosmodrome.
Dietmar Eckell's shuttle photos are part of a broader project by the German photographer documenting abandoned manmade relics as they melt into the landscape. Called "Restwert," the German word for residual value, Eckell says the project underlines "the temporality of manmade objects, human endeavors and visions by capturing them embedded in grand, reclaiming nature."
More Dietmar Eckell photos on NBC News.com: