The Fitness Center at Capital Hilton

"The Hilton boasts a central location two blocks from Lafayette Square (behind the White House) and some nice features -- spa, huge gym, 30,000 square feet of meeting space, and rooms that were renovated in 2010"

"While guests often snag discounted rates, the steep parking charges, fees for Wi-Fi and even gym access, the pricey business center and $5 cups of coffee in the restaurant can quickly bloat the bill"