 Complete the following phrase:  The building fell into obscurity after the opening of the Capital Centre in suburban Landover, Maryland, in 1973. In 1970, Harry Lynn had proactively sold the Coliseum knowing he could not compete with the bigger and better venue being built by his friend Abe Pollin. The Ice-Capades, circus, wrestling moved out. The Near Northeast and H Street neighborhood had also suffered dramatically from the 1968 riots following Martin Luther King Jr.s 