CREATE TABLE faculty (facid DECIMAL, lname TEXT, fname TEXT, rank TEXT, sex TEXT, phone DECIMAL, room TEXT, building TEXT)
CREATE TABLE student (stuid DECIMAL, lname TEXT, fname TEXT, age DECIMAL, sex TEXT, major DECIMAL, advisor DECIMAL, city_code TEXT)
CREATE TABLE activity (actid DECIMAL, activity_name TEXT)
CREATE TABLE faculty_participates_in (facid DECIMAL, actid DECIMAL)
CREATE TABLE participates_in (stuid DECIMAL, actid DECIMAL)

Find the building that has the largest number of faculty members.
SELECT building FROM faculty GROUP BY building ORDER BY COUNT(*) DESC LIMIT 1
SELECT "building" FROM "faculty" GROUP BY "building" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1