Quadripoint
The Four Corners Monument is the only point in the United States where four states meet: Colorado, Utah, New Mexico, and Arizona meet at right angles. The United States first acquired the area now called Four Corners from Mexico after the Mexican–American War in 1848. In 1863 Congress created Arizona Territory from the western part of New Mexico Territory. The boundary was defined as a line running due south from the southwest corner of Colorado Territory, which had been created in 1861. By defining one boundary as starting at the corner of another Congress ensured the eventual creation of four states meeting at a point, regardless of the inevitable errors of boundary surveying. The monument is centered at .
Four Freedoms Monument
The Four Freedoms monument in Evansville, Indiana was designed by Evansville architect Rupert Condict. It consists of four 24-foot tall, ionic Indiana limestone columns, each with the inscription on it of one of the four freedoms. Surrounding these central columns are 50 uniformly shaped blocks representing the 50 states of the United States. Each block represents a state and shows its state seal and its date it became a state. The monument was dedicated in 1976 in commemoration of the United States Bicentennial.
The Four Freedoms Monument of Cleveland, Ohio is located in the Tremont neighborhood. It consists of a single column, with one of the four freedoms printed on each side. On top of the column is a sculpture of two hands holding a globe of the Earth.