Keywords: Beach Drive at Rock Creek Parkway.jpg Beach Drive southbound at Rock Creek and Potomac Parkway near the National Zoo in Washington D C The strange signs are because Rock Creek Parkway is one-way during rush hours The signs read as follows <pre>ROCK CREEK PARKWAY ONE WAY A M - A M ONE WAY P M - P M MON - FRI EXCEPT HOLIDAYS</pre> <pre>Cathedral Ave Calvert St Connecticut Ave arrow pointing diagonally up-right</pre> Taken June 2 2004 by User SPUI own SPUI spuiphoto Rock Creek and Potomac Parkway |