A view of the sarcophagus that was built over the reactor

A 3-dimensional view of Unit 4 before the explosion

Image from thesis of R. Alexander Sich at MIT.

A cross-sectional view of Unit 4 after the explosion

Image from thesis of R. Alexander Sich at MIT.

A blue-print of Pioneer from a top and side view

Courtesy of Redzone Robotics

A 3-dimensional model of Pioneer

Courtesy of Redzone Robotics