Far from being like the other 'ancient' civilizations that we know about, the level of technology reached when Atlantis was at its' peak was far superior to our own.

Among the accomplishments of the Atlanteans, for example, was 'perfect' wather control. Now the average immediate notion is of abundant fields of waving grain in endless summer alongside the most beautiful of beaches. They had that, and it bored them; too utilitarian to them, like we might look at a vineyard. They left such backlands to the serving creatures. The Atlanteans had come into the physical world essentially for the stimulation. They loved storms. Whole areas of their land were given over, like national parks, to violent displays of atmospheric turbulence. Their servants, of course, were less fond of these events, which could kn the equivalent of "artisitc licence" spill over and kill them, destroy their homes, etc. If the Atlanteans noticed and/or cared, they could restore all this damage at will. Some did, some didn't.

They also had the ability to effect geological events for their experiential pleasure. Volcanic fountains were a favourite, but much was done with steam and mineral venting for artistic result. They had plenty of time. The earlier ones were still immortal. More than one volcanic seamount poking its head above the waters of the Atlantic Ocean started out this way. Later, of course, they lost control.

The real core of Atlantean technology that can still be dug up around the earth was far beyond something as simple as weather control. What has attracted the military like carrion is the 'threshold' technology. Some hint of this floated up in the movie 'Stargate', except that the Atlantean version could be called 'Probability Gate'. It's a solid state device (with no selectable 'dial' like the stargate in the movie, for instance) that uses what we think of as time/space as an energy source. The threshold is a lens into probable existence streams, or continua. This area was delved into more deeply with research like the Philadelphia Experiment.


Atlantean Crystals
The Atlanteans used crystals quite extensively, and mis-used them to such a degree that they eventually led to the catastrophe which caused Atlantis to disappear into the ocean.

The Atlanteans used the knowledge of the crystal refraction, amplification and storage. It is known that a beam of light directed intensley and focused specifically on certain series of facets in a gem will, when it exits from the reflective plane of the gem, be amplified rather than diminished. And further, these amplified energies were broken down into a wide and sophisticated spectrum.