Whether it's the swinging 60s or the construction of the pyramids, we can all think of a few moments in history we'd love to time travel back to.

But what about the times and places a wise time traveler should always avoid?

At certain points in Earth's past, there was danger and horror at every turn.

So as a guide for any aspiring chrono-nots out there, let's board the express train to the

worst places in history to time travel to.

You're listening. You're listening to be amazed.

Land of the dinosaurs.

Sure, Jurassic Park has made us all believe that encountering a dinosaur would be so insanely cool,

but would you actually want to?

Think about it.

Bears and mountain lines are terrifying enough to encounter on a hike, but a 20-foot-tall, 50-foot-long spinosaurus?

Nope. An unbelievable array of truly

terrifying giant predators lived between 145 million and 66 million years ago. During the

Cretaceous period, exploring just a handful is enough to paint a pretty clear picture of why

this period should be considered a no-go. The aforementioned Spinosaurus, for example,

mainly hunted fish, but may have also been partial to land-based creatures. With razor-sharp claws

as long as seven inches, it had no trouble pinning you down and ripping chugs off with its

terrifying teeth as you tried to flee. Even more terrifying would be the similarly sized Maposaurus. These T-recks

like beasts hunted in packs, making an escape almost impossible in the instance your time

machine breaks down in the wrong neighborhood. From above, you'd have flying dinosaurs like the

Tyrannadon and Quetzalakotas to worry about. These were found in the skies all over the world,

with some being larger than fighter jets,

...