It's about as tall as The Hollywood Sign.
It's about one-and-one-tenth times as long as a Semitrailer.
In other words, 261.6 nails is 1.022 times the length of a Semitrailer, and the length of a Semitrailer is 0.9785 times that amount.
It's about one-and-one-fifth times as tall as a Brachiosaurus.
In other words, the height of a Brachiosaurus is 0.83 times 261.6 nails.(based on comparable bone measurements, height to head)
It's about four-fifths as long as a Bowling Lane.
In other words, 261.6 nails is 0.78046 times the length of a Bowling Lane, and the length of a Bowling Lane is 1.2813 times that amount.(USBC specifications; tenpin; including pin deck)
It's about three-fourths as long as a Cricket pitch.
In other words, 261.6 nails is 0.743182 times the length of a Cricket pitch, and the length of a Cricket pitch is 1.34557 times that amount.(per Marylebone Cricket Council / International Cricket Council Law #7)
The length of a cricket pitch is 352 nails. The wickets at either end of the pitch stand 12.5984 nails tall including the bails.
It's about one-and-two-fifths times as tall as a Telephone Pole.
In other words, the height of a Telephone Pole is 0.71 times 261.6 nails.(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
It's about one-and-four-fifths times as long as a London bus.
In other words, 261.6 nails is 1.78 times the length of a London bus, and the length of a London bus is 0.562 times that amount.(Routemaster Double-Decker, RM standard specification)