Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

The winning bid for the original Birkin bag set a record for the most valuable handbag ever sold at auction, Sotheby's said.

In all, there are only 400 known Mars rocks on Earth, comprising less than 1% of all known space rocks on the Blue Planet.

Grande tête mince” — a bronze sculpture by Alberto Giacometti — failed to meet expectations at a recent Sotheby’s auction.

The Hermès Birkin prototype, originally made for Jane Birkin, sold at a Sotheby's auction in Paris for $10.1 million. What to ...

A private collector from Japan bought the prototype made for and owned by Jane Birkin.

A massive price tag isn't unheard of in the world of Birkins, but this one is surely the most iconic.

A 54-pound meteorite from Mars is expected to fetch up to $4 million when it goes up for auction later this month at ...

Sotheby’s may be better known for Warhols and Picassos, but this week, the Upper East Side auction house is going full geek. Through July 15, the annual Geek Week exhibition returns, transforming the ...

A 54-pound (25-kilogramme) rock. Estimated auction price: $2 million to $4 million. Why so expensive? It's the largest piece ...

Scuffed, scratched and stained, this black leather Birkin bag just sold for €8.6 million ($10 million), with fees, becoming ...