The most expensive item in the world as of 2025 is the International Space Station, with an estimated cost of about $150 billion. This remarkable space engineering project is a collaborative effort among 15 nations and serves as a high-tech research laboratory orbiting Earth.
In terms of luxury collectibles, the priciest is the "History Supreme" yacht, reportedly costing around $4.8 billion. The yacht is extravagantly adorned with materials like solid gold and platinum.
For auction items, the most expensive sold is the Gigayacht, which fetched $168 million in an online auction, although it was not yet built at the time of sale.
Among Amazon listings, the most expensive product is a Silver Morgan Dollar coin (MS-65 grade) priced at $288,000, a rare and highly preserved collector's item.
Thus, the International Space Station stands as the most expensive object overall, while luxury yachts and rare collectibles lead among high-priced luxury and auction items.
