Seating capacity as recorded in Wikidata, with the source each editor cited there. Big numbers usually mean a national team ground, a college football bowl or a cricket ground; drill into your country or state to see the grounds near you.
Wikidata: stadiums and football grounds with a capacity from 25,000 to 160,000 (larger figures are entry errors or crowd records, not seats) that have an opening or inception date in the past and are not demolished; country and state from the location; the world list is the top 20 of the countries below.