When Ravin bought this up in class the other day, I was thinking the exact same thing! I don't know if you guys remember this from our 8th grade trip, but as we were studying Romanesque and Gothic architecture, the Washington National Cathedral immediately popped into my head. The cathedral is built in the Neogothic style which is essentially a resurgence of Gothic style in the 18th and 19th centuries.
Looking at the cathedral now you can clearly see the rose windows and lancet windows below them. They are strikingly similar to Chartres Cathedral.
Washington National Cathedral
In the first image of the National Cathedral, you can see other characteristics of Gothic style such as the flying buttresses. The Cathedral also has several vaults.
Finally, due to the earthquake earlier this year, the cathedral is truly Gothic in that it is continually being built.