For 10 points, name this early skyscraper that occupies a triangular block near the intersection of Fifth Avenue and Broadway.
The arches that run along the top of this building are divided by carvings of blank tabulae ansatae surrounded by wreaths clutched by eagles. Just above street level, those carvings reappear and are joined by Medusa heads. Unusual wind currents around this building and men's ensuing attempts to look up wind-blown skirts gave rise to the term  [*] "23 skidoo." The designer of the World's Columbian Exposition fairgrounds collaborated with Fredrick Dinkelberg on this building, which had be quadruply-overengineered due to fears that those wind currents would blow it over. One artist compared this building to an ocean steamer and depicted it rising over the snowy treetops of Madison Square Park. For 10 points, name this early skyscraper that occupies a triangular block near the intersection of Fifth Avenue and Broadway.
The arches that run along the top of this building are divided by carvings of blank tabulae ansatae surrounded by wreaths clutched by eagles.
Flatiron Building [or Fuller Building]