Many of Tesla's inventions went unrealized or unfinished.
Here is a list of the more amazing of the bunch.
Wardenclyffe Tower
Wireless Transmission of Electricity: transmitted from power stations and received by antennas on houses and electric cars. This project was very real and was funded by none other than JP Morgan. Wardenclyffe tower was in the midst of being constructed when World War 2 arrived. It's massive structure was scrapped for metal. JP Morgan discontinued the project in fear that there would be no profit in free wireless electricity. Scientists today have already begun to unravel Tesla's ideas and can now power entire rooms completely wireless!
Electric Submarine
Mechanical Oscillator: compresses air until the air is a liquid
Free Energy': Renewable electricity and heat tapped from the natural energy sources (not energy created from nothing)
Earthquake Machine: a pocket-sized device that could shake a house apart with building waves of energy. The earthquake machine was supposedly extremely small, and was broken by Tesla because it locked into a frequency that made his building not only shake, but it caused everything inside to begin to levitate.
Force Field: a magnetic field dome made of energy that will eventually be built big enough to protect a city from attack during wars
Anti-Gravity Aircraft: electric aircraft. Tesla envisioned wingless aircraft simply soaring perfectly through the air, without need for any type of gas fuel. They would appear as bullets silently floating forward
Thought Camera: In 1933, Dr. Tesla theorized about a device that could photograph thoughts. "I expect to photograph thoughts... In 1893, while engaged in certain investigations, I became convinced that a definite image formed in thought, must by reflex action, produce a corresponding image on the retina, which might be read by a suitable apparatus. This brought me to my system of television which I announced at that time..."
The Teleforce (Peace Ray/Death Ray)
Death ray: destructive energy transmitter he claimed to have built - "when unavoidable... may be used to destroy property and life." --- Tesla, 1915
This device was supposedly completed. Tesla said that it would have the same effect whether it was shot at someone at point blank range, or if it was shot at a person across the globe in China.