Thanks to Steve Dugoni et al, (13) looking at Art Dugoni's records, we learned that leeway space could be successfully held to offset anterior crowding with excellent long-term results. Stability and relapse: early treatment of arch length deficiency
The Lincoln Memorial. Photo courtesy of the DC SHPO. The Lincoln Memorial stands at the west end of the National Mall as a neoclassical monument to the 16th President. The memorial, designed by Henry Bacon, after ancient Greek temples, stands 190 feet long, 119 feet wide, and almost 100 feet high. It is surrounded by a peristyle of 36 fluted Doric columns, one for each of the thirty six states in the Union at the time of Lincoln's death, and two columns in-antis at the entrance behind the colonnade.
Gateway Arch -- Jefferson National Expansion Memorial. 630 Feet. The Gateway Arch is one of the newest monuments in the National Park system, and at 630 feet, it is certainly the tallest! The Arch is 75 feet taller than the Washington Monument and over twice as tall as the Statue of Liberty. The 60-foot heads carved on the face of Mount Rushmore are designed to the scale of men who would stand 465 feet tall, a height that would easily allow such giants to walk through the legs of the Arch!