Most Expensive Wood

While not yet on the endangered species list, the African Blackwood—or Mpingo, as the natives of Tanzania call it—is considered a threatened species. It is also the most expensive tree in the world. Mpingo once grew in southern Ethiopia and Kenya, but can now only be found in Tanzania and northern Mozambique. It is a slow-growing tree that survives...

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World’s Most Expensive Motorcycles

Motorcycles have had mass appeal to the general public for roughly a century and a half. An American named Sylvester Howard Roper designed one of the first motorcycles in the 1860s. The motorcycle was displayed at fairs and circuses around the eastern U.S.. Europeans also had their hand in popularizing motorcycles and, during the World Wars, motorcycles...

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