Four Corners Monument
The Four Corners Monument marks the quadripoint in the Southwestern United States where the states of Arizona, Colorado, New Mexico, and Utah meet. It is the only point in the United States shared by four states, leading to the area being named the Four Corners region. The monument also marks the boundary between two semi-autonomous Native American governments, the Navajo Nation, which maintains the monument as a tourist attraction, and the Ute Mountain Ute Tribe Reservation.
Four Corners (Newark)
Four Corners is the intersection of Broad and Market Streets in Newark, New Jersey. It is the site of the city's earliest settlement and the heart of Downtown Newark that at one time was considered the busiest intersection in the United States. The area that radiates 22 square blocks from the crossroads is a state and federal historic district.