1. The Terex-Bucyrus RH400: This is a hydraulic mining excavator and is considered to be the world’s largest land vehicle. It stands at 98 feet tall and has a digging reach of more than 90 feet.
2. The Liebherr T 282B: This is a massive mining truck that can carry up to 400 tons of payload. It is considered to be one of the largest and most powerful trucks in the world.
3. The P&H L-2350: This is a wheel loader used in the mining industry. It is considered the largest wheel loader in the world, with a bucket capacity of 52 cubic yards.
4. The Caterpillar 797B: This is a mining truck with a capacity of up to 400 tons. It is considered the largest and most powerful truck of its kind.
5. The LeTourneau L-2350: This is a wheel loader that is used in mining and construction. It is considered the largest wheel loader in the world, with a bucket capacity of 52 cubic yards.
6. The BelAZ 75710: This is a mining truck with a capacity of up to 450 tons. It is considered the largest and most powerful truck of its kind.
7. The Bagger 293: This is a bucket-wheel excavator used in coal mining. It is considered the largest land vehicle in the world, standing at 315 feet tall and 721 feet long.
8. The F60: This is a massive excavator used in surface mining. With a weight of over 2,300 tons, it is considered one of the largest excavators in the world.
9. The Goliath: This is a massive crane used in construction and heavy industry. It is considered one of the largest cranes in the world, with a maximum lift capacity of up to 3,000 tons.

These are a few examples of the biggest and most powerful heavy equipment and monster machines of all time. They are marvels of engineering, capable of moving and lifting massive amounts of materials and have been instrumental in the construction and mining industries.