AARP MEMBER DISCOUNTS SEE MORE

Among D.C.'s natural hazards, motorcades rank near the top. These inconvenient affairs—which mark every time Vice President Joseph Biden is whisked from the White House to the Naval Observatory or visiting dignitaries travel in the city—lead to street closings that span dozens of blocks. For pedestrians, proximity to prominent figures might prove exciting. For drivers, motorcades are a hassle and another reason to stick with the Metro during your stay.