CREATE TABLE table_203_420 (id DECIMAL, "#" DECIMAL, "stadium" TEXT, "capacity" DECIMAL, "city" TEXT, "home team" TEXT)

which city has the stadium that can hold the most people ?
SELECT "city" FROM table_203_420 ORDER BY "capacity" DESC LIMIT 1
SELECT "city" FROM "table_203_420" ORDER BY "capacity" DESC NULLS LAST LIMIT 1