Named for its prominent size—11 feet tall and 20 feet long—the skeleton was predicted to fetch up to $6 million. Instead, it smashed every expectation and became the most expensive fossil ever ...

Plan on shelling out $200 for smaller specimens and as much as $8,000 for the gallery's tallest cactus, a 20-footer ... creations -- a four-foot-tall hot pink balloon showgirl headdress that ...