Just when we think we've done it all, Pittsburgh goes and surprises us again. Even if you've lived in the Burgh your entire life, you're still likely to discover an attraction, a restaurant, or something that you didn't know existed. And, if you've done everything there is to do? Not so fast. Here are 13 more unique things to do in Pittsburgh.

1. Dine at a haunted restaurant.

Pull up at chair the Harmony Inn for a delectable meal and perhaps a little bit of other wordly company. If you spot a dime or a quarter on the floor, you know you've been in the presence of Louie. Louie, a soul who still wanders the inn, is said to have died after a fall on the stairs in the restaurant.

2. Hop on a fall foliage train ride.

Viewing the spectacular fall foliage that paints the Western Pennsylvania landscape is a highlight of the season for many of us. Let someone else do the driving so you can enjoy nature's beauty. Oil Creek & Titusville Railroad offers scenic fall foliage train rides, typically three hours long, during autumn. Admire the fall foliage aboard this unforgettable Oil Creek & Titusville Railroad train ride.

3. Go to Mars.

Send yourself a postcard from Mars, a popular activity for many who visit the enchanting town - not planet - of Mars, PA. The whimsical small town welcomes the world - and NASA - every two years to celebrate the Mars New Year. No matter when you visit, you'll find an assortment of quaint restaurants and shops to visit.

4. Spend an afternoon at this unique park.

Discover a tiny piece of heaven for rescued farm animals at the Hope Haven Farm Sanctuary The sprawling sanctuary hosts events throughout the year and offers tours during the summer months.

5. Drive down this haunted road – if you dare.

Do you know the legend of the Blue Mist Road - also known as Irwin Road - in North Park? Perhaps it's best if you don't before driving down the darkened road. Haunted, so local legend goes, by a family murdered by the father, the road promises to send chills down your spine. Oh, and that's just the beginning. Plenty of spirits are said to haunt Blue Mist Road.

6. Meander around a lavender farm.

Breathe in the sweet scent of lavender at the gorgeous Destiny Hill Lavender Farm. Give a pat to Luther, the farm's adorable donkey, and cross a picturesque footbridge. Plan a visit in the summer, too, for the annual lavender festival. This place is one of the most beautiful Pittsburgh hidden gems.

7. Rejuvenate in a salt cave.

Escape all the stresses of reality with a relaxing session in a salt cave. Peace, Love, & Zen Wellness Center offers 45 minute salt therapy sessions while you kick back and relax on a zero gravity chair.

Take camping to the next level of luxury with a glaming experience.

You can do this at Yogi Bear's Jellystone Park at Kozy Rest. Play the day away in the pool, the arcade, the playground, or at mini golf. Then spend the night sleeping in a yurt, a cozy cabin, or a traditional tent.

9. Treat yourself to an ice cream buffet.

Any day's a good day for ice cream. Indulge in the old-fashioned treat at Betsy's Ice Cream Choose from nearly 30 different flavors of ice cream, sorbet, and yogurt. And, the best part? The buffet of toppings! Add nuts, sprinkles, whatever you fancy to make the perfect ice cream treat.

10. Stop by a milkshake bar.

Swing back and forth on an old-fashioned swing (yes, you read right, swing!) while sipping on a milkshake at Fudge Farm in the South Side. But, don't limit yourself to a milkshake. Try chocolate covered pretzels, candy apples, or chocolate covered graham crackers to go with that milkshake.

11. Journey to an enchanting small town.

Explore the quaint main street in Brookville, an enchanting small town just 80 miles from Pittsburgh. Take in a double feature at the Moonlite Drive-In or go fishing at the Brookville Waterworks Dam.

12. Ride one of the country’s steepest inclines.

Editor's Note: This attraction is temporarily closed for restoration, so be sure to check the entity website for updates on its reopeninig.

We've all been to the top of Mount Washington, arriving there via an incline. But, have you ever been on the Johnstown Inclined Plane? If not, you're in for a treat. The incline features a 70.9 percent grade. You'll travel to the top of Yoder Hill, which promises spectacular panoramic views of Johnstown.

13. Build your own taco.

Build your own taco - just the way you like it - at Condado Tacos.The popular taco spot appeals to carnivores, vegetarians, and vegans with its many meats, cheeses (natural and vegan), and other toppings.

Would you agree that these are among the best things to do in Pittsburgh? What are some other things to do in Pittsburgh that you think deserve be on this list? Share below! Running short on time? There are also many unique things to do In Pittsburgh that take less than an hour.

Want to stay in Pittsburgh for a weekend? Consider the Pittsburgh Marriott City Center.

If you’re still in the mood for more Pennsylvania adventures, take a look at this video: