It was No.5, 1948 by Jackson Pollock. The original price it was sold at was $140 million. For more information, check the related link below.
The most expensive sword is a 13th century samurai sword that sold for $418,000 at an auction
A vintage Bugatti sold at auction in California for about $30 million.
The most expensive musical instrument sold at an auction in 2011 would be the 'Lady Blunt' Stradivarius violin sold for $15,875,800 by Tarisio Auctions In London.
The most expensive breyer horse i have bought is 150 $
The most expensive one that I know of is Dizzy Gillespie's Martin Committee trumpet that sold for $55,000 at an auction in 1995.
The most expensive Canadian cent is the 1936 DOT, it sold at auction for $402,000 and there are only 3 known. I will add a link to the auction when it sold in January.
The Koenigsegg Agera R is currently the most expensive "new car" at 2.5million dollars. The most expensive ever sold, at auction, 1936 Bugatti Type 57C Atlantic - $43.7 million (2010)
Lapad is the most expensive money in the world
In 2008 at a auction a Ferrari 250 GTO sold for 23.5 million
I believe it sold for a whopping $100,000,930,099 in a US auction in Oklahoma in 1969.
Michael Jackson's 30th Anniversary Special was his most expensive show ever. Tickets to this 2001 New York City revue cost as much as $5,000.