1. Albert Einstein Handwritten Letter

Starting price: $ 3 million

Sold For: $ 3, 000, 100 - Yes, $ 100 More Than Order

In a 1954 letter addressed to the Jewish philosopher Erik Gutkind, Albert Einstein discussed ethics, religion, and human nature. It was sold at a virtual auction to an anonymous buyer.

2. The original Hollywood sign

Starting price: $ 300K

Sold for: $ 450K

The original 1923 sign was replaced by a brand new one in 1978. The oldest and most damaged sign was kept for almost three decades, until it was auctioned off in 2005.

3. A piece of Mars

Starting price: $ 450K

Sold for: $ 450K

The chance of a meteorite that hit Earth from Mars is tiny: of the more than 60, 000 samples known to science, only 132 are original pieces of the Red Planet.

4. A sea urchin unknown by science

Starting price: $ 9.50

Sold For: $ 138.00

In 2006, a curious sea urchin went on sale on eBay. Most amazing of all is that until then it was totally unknown to scientists, having subsequently been named Coelopleurus exquisitus.

5. A Tuscan Village

Starting price: $ 5 million

Sold By: $ 3.1 Million

For years, the owner of 25 properties in Pratariccia village, 35 km from Florence, Italy, has tried to sell them for real estate. He found the solution on the internet in 2012, where he got a buyer who paid almost $ 2 million less than he asked for.

* Posted on 5/17/2016