Bethesda is located at (38.984660, -77.113135). According to the United States Census Bureau, the CDP has a total area of 34.2 square kilometrekm sq (13.2 square miles). 34.0 km sq (13.1 mi sq) of it is land and 0.1 km sq (0.1 mi sq) of it (0.38%) is water. The main commercial corridor is Wisconsin AvenueMaryland Route 355, which in its northern reaches connects Bethesda with the communities of North Bethesda, MarylandNorth Bethesda and Rockville, MarylandRockville and is known as Rockville Pike. Rockville Pike becomes Wisconsin Avenue near the NIH and continues beyond Bethesda through Chevy Chase, MarylandChevy Chase and Friendship Heights, Maryland and into Washington, DC. The area commonly known as "downtown Bethesda" is centered at the intersection of Wisconsin with Maryland Route 187, Old Georgetown Road, and Maryland Route 410, East-West Highway. Much of the dense construction in that area followed the opening of the Bethesda (Washington Metro)Bethesda station on the Red Line (Washington Metro)Red Line of the Washington Metro, also located at this intersection and the centerpiece of the Bethesda Metro Center development. The "downtown," which includes the restaurant districts of Bethesda Row and Woodmont Triangle, lies about 0.7 miles south of Bethesda's other Red Line stop, Medical Center (Washington Metro)Medical Center, which serves the NIH and Bethesda Naval Hospital. Bethesda Row and Woodmont Triangle are under heavy development, including several luxury condominiums, restaurants, and businesses. The outer rim of Bethesda is known for older houses that still hold a strong value in today’s residential market. Even with the great “bubble burst” this in 2006, Bethesda real estate seems to be holding strong. As of November 2, homes are for sale in Bethesda alone for an average price of $994,900, a price change up from October +7.6%. Source: http://en.wikipedia.org/wiki/Bethesda%2C_Maryland