26. Madison Square Garden(s)
Location: 8th Avenue b/w 49th & 50th Streets, New York (MSG III)andEast 26th Street and Madison Avenue (I & II)
Opened: 1879, 1890, 1925
Demolished: 1925, 1968
Current status: New York Life Building (MSG I & II), World Wide Plaza, Inc. (MSG III)
Famed tenants: New York Rangers (NHL) (1926-1968), New York Knicks (NBA) (1946-1968)
Originally known for P.T. Barnum's circuses and cycling races, the original open air Garden left much to be desired. The second incarnation at the same location on 23rd St. was the one that put the name on the map becoming the place for boxing matches, featuring 32 world championship fights between 1925 and 1945. While maybe best known as the place where Marylin Monroe sang "Happy Birthday" to JFK, MSG III brought in the now standard hockey and basketball tenants more widely known in the modern era.