There is an abandoned 13-mile stretch of the Pennsylvania Turnpike that was bypassed in 1968.

The road, which is now used by many as a hiking and biking trail, has three abandoned tunnels and a travel plaza to check out.

2. Pymatuning Spillway - Linesville

The Pymatuning Spillway is known for where “the ducks walk on the fish.”

Don’t forget your bread to feed the fish!

3. Kecksburg Space Acorn UFO -- Kecksburg

There was an incident in Kecksburg in 1965 when a fireball crashed into the woods. NASA said it was probably a meteor, but some people claim it was a spacecraft that was shaped like an acorn.

Read more about the Kecksburg incident here.

4. Roslyn Place -- Pittsburgh

Pittsburgh’s last wooden street!

According to Atlas Obscura, the road that was installed in 1914 and has around 26,000 wooden blocks is one of only a handful of wooden streets left in the world.

5. Kinzua Bridge State Park -- Mt. Jewett

The Kinzua Viaduct was once the longest and tallest railroad structure at 2,053 feet long and 301 feet high, according to the Pennsylvania Department of Conservation and Natural Resources.

It was partially destroyed by a tornado in 2003.

The remaining part of the structure is now a walkway for visitors to explore.

6. Mars Flying Saucer -- Mars

There is a flying saucer in the town square, which is great for a photo op!

8. Randyland -- Pittsburgh

Tucked in the Mexican War Streets on Pittsburgh’s North Side, a burst of color surprises visitors.

Gilson created Randyland, his home and an unconventional art museum.

[ Proud to be from Pittsburgh: Randyland ]

9. Fountain of Youth, Wexford, Pennsylvania

The Fountain of Youth, which was built in 1938, was used as a local water source until May 1955, according to Atlas Obscura.

The pump was broken off when the water was deemed unsafe.

Click here to read more.