Try this for size.
http://www.bigbrutus.org/
The statistics give the hard cold picture -
Bucyrus Erie model 1850B
second largest electric shovel in the world
16 stories tall (160 feet)
weight 11 million pounds
boom 150 feet long
dipper capacity 90 cu. yds (by heaping, 150 tons -- enough to fill three railroad cars.)
maximum speed .22 MPH
cost $6.5 million (in 1962)
I used to work for a guy that ran this.
Big Brutus could fill the Titan in only 3 dipper loads.
I have been on this shovel, it is HUGE!!!
Here it is again, but at work instead of travel:
Nothing like a huge milling machine for the Earth. Check out the stairways leading up to the control room, much less the size of those people in comparison.