Sometimes a sight is so beautiful that you can't describe it in words-- whether it's a waterfall, a canyon, or dinner after a long day. Perhaps nothing is as breathtaking as a vista from your own home state. We're lucky to call some of the most gorgeous countryside and landmarks in the country our own. Here are 20 of the most beautiful places in Pennsylvania. (See if you agree.)

1. Bake Oven Knob, a lookout along the Kittatiny Ridge in Lehigh County, offers a divine view of the surrounding countryside.

Find a map to Bake Oven Knob via the Appalachian Trail on All Trails.

2. Everyone knows of the Great Lakes but few get to admire them in person. Lake Erie is the tenth largest lake in the world and the only Great Lake to border Pennsylvania.

Learn more on the official website of Visit Erie.

3. Anyone driving into Philadelphia along the Schulykill River will notice Boathouse Row, especially at night when the mansions are illuminated by strings of white lights. The Boathouses, 15 in number, are historic landmarks and national meeting places for rowers.

Learn more about Boathouse Row.

4. The American Continental Army spent a brutal winter at Valley Forge during the Revolutionary War, but today it is host to historic landmarks and many acres of pristine fields.

Here's the official website of Valley Forge National Historical Park.

5. From Mount Washington, Pittsburgh looks more like a painting than a real city. This view is at the top of the incline which is a famous landmark in Pennsylvania's second largest city.

6. Lehigh Gorge State Park is home to Glen Onoko Falls, the magnificent waterfall system located about an hour and a half outside of Philly.

Unfortunately, you can only admire the beauty of Glen Onoko Falls from photographs. Due to countless deaths, the trail to the waterfall has been closed to the public. Check out the official website of Lehigh Gorge State Park.

7. Pine Creek Gorge is sometimes called the Grand Canyon of Pennsylvania, and I bet you can guess why.

Find more information on Pine Creek Gorge.

8. The Boulder Field at Hickory Run State Park is a national nature landmark that was created during the last ice age. The field consists of huge boulders as far as the eye can see-- not your typical hiking experience.

Here's the official website of Hickory Run State Park.

9. Ohiopyle State Park, near Pittsburgh, offers visitors miles of rapids for kayaking or rafting. The hard part is deciding whether to partake in the adventure, or to watch from the bridge that rises high above the water.

Stop by the official website of Ohiopyle State Park.

10. Kinzua Bridge used to be a railway trestle. Today it's a 600-foot skywalk, which features a glass floor, that offers sensational views of Allegheny National Forest.

Learn more on the official website of Kinzua Bridge State Park.

11. How can you admire Pennsylvania without taking a moment to appreciate the quaint beauty of a covered bridge?

12. Cherry Springs State Park offers the darkest skies on this side of the Mississippi-- some even argue that there is less light pollution here than anywhere else in the country. Either way, it makes for excellent stargazing.

Head over to the official website of Cherry Springs State Park.

13. Here we have the City of Brotherly Love, Philadelphia, captured at night, when it is illuminated by city life.

Start planning your trip with a stop at the official website of Visit Philadelphia

14. Pennsylvania boasts some of the most expansive and bucolic countryside in the entire country. Between Philadelphia and Pittsburgh, you will find miles upon miles of rolling green fields, cows, and farmland.

15. Gettysburg National Military Park honors the soldiers who fought in the Battle of Gettysburg during the Civil War. The expanse of candles lit in memory will send chills down your spine.

Here's the official website of Gettysburg National Military Park.

16. Bethlehem was once home to Bethlehem Steel, which produced much of the steel used throughout the country. The company has since shut down, but the abandoned steel stacks remain a landmark of Eastern Pennsylvania.

Check out the website of Bethlehem, PA.

17. Jacobsburg State Park, near Allentown, holds the mysteries of the forest. Dense foliage, babbling brooks, and wildlife that rustles through the leaves wait for you here.

18. The Poconos attract more tourists than perhaps any other outdoors destination in Pennsylvania, for their extensive hiking trails and their ski slopes.

Plan your trip to the Pocono Mountains.

19. Beltzville Lake is a popular fishing and boating destination, as well as a beautiful place to go camping.

Find more information on the official website of Beltzville State Park.

20. Bushkill Falls, also known as the Niagara of Pennsylvania, is a series of eight waterfalls in Eastern Pennsylvania.

Here's the official website of Bushkill Falls.

Pennsylvania has it all-- skylines, waterfalls, fields, forests. Even if you can't visit all these places in person, at least you can admire them in photographs. What else would you add to the list of the most beautiful places in Pennsylvania? Let us know in the comments! Here are 10 more unimaginably beautiful places in Pennsylvania you'll definitely want to check out.