Manhattan: Madison Square/
Fifth Ave. between 23rd and 24th Sts.
For fifty years, this was the site of the Fifth Avenue Hotel, originally mocked as "Eno's Folly" because developer Amos Eno built it so far north of what was then the city center. The hotel later served as the Republican party state headquarters, where "Boss" Thomas Platt held court; the area where Platt considered political favors was known as "Amen Corner." Three of the four corners of Madison Square Park are occupied by sculpture honoring prominent Republicans. The hotel was demolished in 1908.