I stumbled across these images of this humongous excavating machine built by Krupp in Germany. It is used to move earth open air mines.
The machine is 95 meters high and 215 meters long, weighs 45,500 tons. It took 5 years to design and manufacture at a cost of $100 million. It requires 5 operators and can move at the speed of 0,5 km an hour.


Seeing the image above, I instantly thought of
Archigram's ideas of walking cities.
"The
Walking City is constituted by intelligent buildings or robots that are in the form of giant, self contained living pods that could roam the cities. The form derived from a combination of insect and machine and was a literal interpretation of Corbusier's aphorism of a house as a machine for living in. The pods were independent, yet parasitic as they could 'plug in' to way stations to exchange occupants or replenish resources. The citizen is therefore a serviced nomad not totally dissimilar from today's executive cars. The context was perceived as a future ruined world in the aftermath of a nuclear war." from
wikiImagine having these giant mechanical beasts roaming the earth. It would be something straight out of something from a 60's sci-fi movie.
