Do they exist?

Witchcraft has been practiced for centuries by witches who insist that their spells produce real magic, but skeptics say that spells produce nothing.

Stories of nocturnal beings who feed off the blood or life force of humans have been shared throughout time and across cultures.

For centuries there have been tales about haunted houses; sometimes there are multiple witnesses who insist they are telling the truth.

People have believed in ghosts since ancient times and recently paranormal investigators have developed methods to detect evidence of the spirit world.

The many persistent stories of fire-breathing dragons and the brave men who fought them have entertained people for centuries.

Skeptics say accounts of people seeing UFOs and aliens are not real, yet those who experience encounters seem reliable and give similar descriptions.