This image shows the famous cherry trees in bloom as they frame the Washington Monument across the Tidal Basin in Washington, D. C.

The description states:
The Washington Monument. The white marble shaft rises 555 feet and may be reached by elevator in 70 seconds. The cherry trees ordinarily bloom early in April.
–For a number of reasons, the monument, started in 1848 was not completed for forty years. The original design had a colonnade and a flat top, but the colonnade was abandoned and a pyramidion was added to the top.
This card was used and is dated 16 July 1966.

This image is an iconic view of the U.S. Capitol illuminated as the sun sets.

The description states:
UNITED STATES CAPITOL BUILDING
…Illuminated at night, you can see the great dome which towers 285 feet above the ground. The Rotunda, which is the center of this building, is beneath the dome.
–This card was used and stamped but apparently never mailed. The six cent Eisenhower stamp indicates It likely dates from the 1960s.