[timeout:300][out:json];
(
node(around:1000,37.78000,-122.41370)[place=square][name];
way(around:1000,37.78000,-122.41370)[place=square][name];
rel(around:1000,37.78000,-122.41370)[place=square][name];
node(around:1000,37.78000,-122.41370)[tourism=artwork][~"^(addr:housenumber|.*name.*)$"~".",i];
way(around:1000,37.78000,-122.41370)[tourism=artwork][~"^(addr:housenumber|.*name.*)$"~".",i];
rel(around:1000,37.78000,-122.41370)[tourism=artwork][~"^(addr:housenumber|.*name.*)$"~".",i];
);
out center tags;
United Nations Plaza (often abbreviated UN Plaza or UNP) is a 2.6-acre (1.1 ha) plaza located on the former alignments of Fulton and Leavenworth Streets—in the block bounded by Market, Hyde, McAllister, and 7th Street—in the Civic Center of San Francisco, California. It is located 1⁄4 mi (0.40 km) east of City Hall and is connected to it by the Fulton Mall and Civic Center Plaza. Public transit access is provided by the BART and Muni Metro stops at the Civic Center/UN Plaza station, which has a station entrance within the plaza itself.
found a single match candidate
| square (Q174782) | place=square |
| Fountains in California | amenity=fountain |
| Squares in San Francisco | area=yes, place=square, foot=yes, leisure=park, amenity=market, highway=pedestrian |