> 108 trillion Vietnamese dong, more than $4bn (£2.3bn) in cash from the bank, and store it in her basement

For personal curiosity, largest dong note is 500k , that's 208 million bills. Very lazy Theydidthemath attempt but 500k dong is ~$20 USD. If you look up visiualizations of how much 1B of 100 USD notes are, usually palletized, 1B USD is 12 pallets. 1T dong is 60 pallets. Her driver moved 120 pallets of dongs in her basement. ~480ft x 480ft / ~146m x 146m square tiled.