One of the city's most stunning attractions is the Washington National Cathedral that began construction in 1907 and was not completed until 1990. Theodore Roosevelt was just one of the Presidents who oversaw the cathedral's construction, and every US President has attended services there. The structure is approximately one-tenth of a mile long and it contains more than 200 stained-glass windows that create a mesmerizing effect when the sun shines through. The observation gallery within the cathedral offers still more unbelievable vantage points, and there are regular tours that explain the architecture, history and the church's mission in further detail.
The two of you deserve to put some artistic flair into your romantic time together, and there's no better place to do that than the John F. Kennedy Center for the Performing Arts. America's memorial to President Kennedy keeps an artistic tradition alive that would have put a smile on the face of the beloved fallen leader. There are 7 different theaters in the venue that are always featuring such works as ballet, dance, opera, symphonic presentations and so much more. There are enough places on the grounds for the two of you to sit and enjoy each other's company before or after whatever production you have decided to take in.
The Kennedy Center for the Performing Arts can be considered the headquarters of stage performances in Washington, or even the whole country for that matter! The entertainment facility is immense as it sprawls out over 17 acres, overlooks the Potomac River and features six theaters that are always staging various productions like plays, operas, ballets and lots more. There are tours of the facility itself, as well as several exhibits and even an excellent concession area.
The Washington and Old Dominion Trail (W&OD or "Wad") is an excellent recreation trail that runs through the Northern Virginia counties. The 45-mile trail is completely paved with nine foot wide asphalt and has a yellow painted center line. To run the whole trail and back means you're looking at a 90-mile trek, but it can be done over the course of two days thanks to the hotels and bed and breakfasts along the trail. The only real complaint from bikers is that there's much traffic most of the time due to the Wad's immense popularity.