Journey Into Mystery #96

Merlin is awakened after a thousand years and immediately decides to try and take over the world; He battles Thor using familiar Washington D.C. monuments. Thor defeats Merlin and forces him to return to sleep.

The gorgons of myth were aliens and send an agent to modern Earth preceding an invasion. She cannot turn the first men she encounters to stone, but since she doesn't know that they're blind the invasion is cancelled.

An arrogant rich man builds a time machine in order gain the secret to eternal life from the future. When he arrives he finds that the Earth that humanity has gone to a paradise planet, and his time machine will not take him back.