Cereal heiress Marjorie Merriweather Post’s mansion and gardens, her czarist treasures, jewelry, portraits. Cafe and gift shop. Tu-Su 10 am-5 pm. $18 suggested donation, seniors $15, college students $10, children (6-18) $5, under 6 free. Park on site, or take a cab. Guided, audio and printed tours of mansion and gardens plus “special access” tours.