At the back of the sink or toilet, the ceiling height can be as low as 60 inches. Vanity and sink heights have no requirements for height; the recommendation is that they fit the height of the user, ranging from 32 to 43 inches.
This year's edition of the World Urban Areas Report covers more than a thousand of the largest cities in the world, from Tokyo (pop. 37,000,000), right down to tiddlers like 850th-ranked Leicester (Pop. 534,000): all 1,009 cities, in fact, with a population of half a million of more. Here are the top 10.
The largest city in the USA is, of course, New York City. The city's population is estimated at an impressive 8.3 million, which makes New York City larger than the second and third most populous cities in the United States (Los Angeles and Chicago) combined. For much of the early 20th century, New York City was the largest city in the world.