Wanderlust World Wanderlust World No dinosaur ever approached Mount Everest's height. The comparison isn't close.
Mount Everest: 8,848.86 m (29,031.7 ft) above sea level. Largest dinosaur (Argentinosaurus): ~39.7 m (130 ft) long, ~7–8 m tall at hips, ~70–100 tonnes. Tallest dinosaur (Sauroposeidon): ~17–18 m (56–59 ft) neck height.
Everest is ~220x taller than Argentinosaurus and ~500x taller than Sauroposeidon's shoulders. If Argentinosaurus stood next to Everest, it would be a toy at the mountain's base.
Confusion between length and height (dinosaurs were long, not tall). Or mythic thinking—dinosaurs as "monsters" equated to the biggest geological feature. Or misunderstanding "tallest mountain" (Mauna Kea from base is taller; Everest is highest above sea level).
Dinosaurs were Earth's largest land animals. Everest is Earth's highest landform. Different categories. Different scales. Both awe-inspiring—but not comparable.