From real-life haunted hotels to unexplained phenomena, Oklahoma has its fair share of terrifying places. The Sooner State has been the center of paranormal investigations and ghostly stories for many centuries. Here are 13 reasons why Oklahoma is the most terrifying, spookiest state:

1. Our abundance of abandoned houses will creep you out.

Oklahoma has many abandoned homes that have been reported as haunted with paranormal activity.

2. Our hotels are as eerie as they are beautiful.

From the famous Skirvin Hotel in OKC to the Stone Lion Inn in Guthrie, the stories are endless of ghostly sightings...just ask the NBA players.

3. You might even hear the cry of babies on many of our bridges.

Oklahoma is home to several Crybaby Bridges. There is a local legend about a woman and her infant child driving down the road trying to escape her husband, only for the woman's car to run off the bridge. Legend has it that the baby was never found, and that if the bridge is visited at midnight the baby's cry can be heard and sometimes accompanied by a strange blue light.

4. We have haunted universities...

OU's Ellison Hall, OSU's Student Union, SE's Shear Hall, NSU's Seminary Hall and several others all have stories of ghosts haunting the campuses.

5. ...haunted museums...

Gilcrease Museum in Tulsa is a prime example of one of our many haunted museums. Past owners, patrons and workers haunt the halls of many of our finest museums.

Editor's Note: The Gilcrease Museum is temporarily closed.

6. ...haunted cemeteries...

Blanchard, Timber Ridge and Hillside Cemetery are a few examples of the many haunted cemeteries in the state. Visit these places at night and you'll see what we mean.

7. ...and haunted theaters.

Oklahoma has many terrifying and spooky theaters. Many of them have been documented and confirmed by paranormal investigators.

8. We have unexplained phenomena.

Head out to Pitt Rd. in the town of Springer, Oklahoma and you'll see what we're talking about. If you put your vehicle in neutral at the bottom of the hill, it will suddenly appear to defy gravity as it rolls backward, uphill.

9. Don't forget our many spooky, abandoned asylums that are filled with hostile souls.

Old asylums are some of the scariest places. And the ones in Oklahoma are no exception. Many ghostly sightings, strange noises and apparitions have been reported at many abandoned asylums still standing.

10. We have strange ghost lights that appear in the sky.

Scientists have tried explaining it, but they still don't know what it is. Strange lights appear in the sky over Ottawa County - at different times and in different shapes.

11. We have toxic ghosts towns.

We have many spooky ghost towns, but Picher is considered one of the most toxic towns in America. That sounds pretty terrifying, if you ask me!

12. We have strange, eerie forests.

Pictured above is Parallel Forest - a forest of perfectly aligned red cedars all planted exactly 6 feet apart. From satanic alters to paranormal tales, this forest has been the location of many ghost sightings and strange occurrences.

13. And last but not least, we are filled with haunted burial grounds.

Native Americans are at the center of Oklahoma history. Long before we were Oklahoma, Native Americans occupied the land. With so much Native American history, it's no surprise we are filled with spooky burial grounds.

What are some more things that you think makes Oklahoma a haunted state?