B Street's renewal soon became caught up in the creation of Senate Park north of the U.S. Capitol building. This area (today roughly bounded by Louisiana Avenue NW, Columbus Circle, 1st Street NE, and Constitution Avenue NE/NW) was home to a number of dilapidated office buildings and hotels. But beginning in 1910, Congress began acquiring entire city blocks in this area, with the intent of building an underground parking garage and creating a park between the Capitol and Union Station (which had opened in 1908). The question confronting the AMBC and NCPC was whether B Street should continue east through this area to connect with B Street NE or end at Pennsylvania Avenue NW.