Time Travel Dilemma

You invent a time machine but it only makes one round trip. Where and when would you go and why?

An age-old realm of science fiction, time travel can be used as a mechanism to delve into historical events from unexpected perspectives, or to explore the potential of our future. This prompt provides a platform to explore the morals and consequences of tampering with time, as well as a detailed exploration of a specific time period, or the effects of future events or technology.