Washington Monument
Vesica piscis
### Vesica piscis

[thumb\|upright\=1\|The monument stands at a height of about 555 feet.](/wiki/File:Washington_Monument_-_night.JPG "Washington Monument - night.JPG")
In the 2004 grounds renovation, two large circles were added to the landscaping with the obelisk in the intersection or [vesica piscis](/wiki/Vesica_piscis "Vesica piscis"). The monument's vesica piscis is not ideal because neither circle passes through the center of its neighbor. Furthermore, both "circles" are slightly elliptical.


What is the vesica piscis?