Alfa Nero, the 269-ft. Oceanco superyacht has been listed for sale via brokerage firm Edmiston & Co. for €129,750,000 (about $190 million).

Named after Roman emperor Nero, this superyacht was designed for the stylish and powerful Lords of the seas.

She was ranked #43 in Boat International’s list of the world’s 100 largest yachts in February 2009 and is Lloyds classed and MCA compliant.

One of Australia’s richest men, Clive Palmer, has drawn criticism for buying his teenage daughter a yacht worth AU$5.3m.

Child experts say that giving multi-million dollar gifts to teenagers is dangerous because it gives them unrealistic expectations about money.

Psychologist Renee Mill says that whilst it is commonplace for many wealthy parents to give expensive gifts like this, it amounts to irresponsible parenting.

Porsche Design has unveiled its latest collaboration with yacht builder Royal Falcon Fleet, a 135 ft. catamaran.

The RFF135 is their first joint venture which has reached the first milestone of the construction.

The $58million craft features 472 square metres of interior space, accommodating 10 passengers and 10 crew members.

Riva has just unveiled their newest yacht for the 2010/2011 season newest yacht, the 86’ domino, at the Cannes Boat Show last week.

This latest 26 meter yacht is considered to be an evolution of the renowned 63’ Vertigo and 68’ Ego Super models.

The boat can sleep eight guests in four cabins with four crew members whilst there is space on the boat to entertain up to twenty people on board.

Remember the solar powered Dubai Sea Limousine (an eco-friendly mode of transportation to and from the islands of The World)?

Raising the bar further, Dennis Ingemansson has designed this 45m superyacht that shows the trend toward the eco-friendly yachts of the future.

Designed for the Dutch company Esthec, the superyacht generates solar energy to propel the yacht’s electric engine.

The 125m 7Cs superyacht was created in-house by Drive, a leading company in Marine and Automotive design.

Drive’s designers were keen to challenge the traditional proportions of a superyacht and create a vessel that borrowed tried and tested ideas from the automotive industry.

This concept yacht has a sunken pool, helipad, retractable cover, Jacuzzi and a boatload of luxury for the interiors.