For those graduating from Penn State, many have just one chance to leave a truly lasting impact on the university they called home for years: a senior class gift.

Over the years, Penn State has received over 150 class gifts, from different kinds of funds to the Nittany Lion Shrine and the Old Main clock. We set out to see which of the many gifts were the most memorable or noteworthy gifts.

10. Class Of 1903: Gateway At Burrowes/Pollock Road Gateway Entrance To Campus

This gift was from the Class of 1903 during its 50th-anniversary reunion. The gateway was originally installed at the intersection of Atherton Street and Pollock Road but was moved in 2002 one block east to its current location to make way for the construction of the present-day Westgate Building.

9. Class Of 1966: Armillary Sphere On Old Main Terrace

Also known as the “Old Main Turtle,” this is often mistaken for the Class of 1915’s gift, the sundial on Old Main Lawn, but is actually the Class of 1966’s gift. An armillary sphere is an instrument used to show the position of the sun when it’s rising and setting, in some ways like a sundial. The astronomical tool is used to give a visual representation of the cosmos dating back to the fourth century B.C., while sundials were functional timekeeping tools reliant on the sun’s position to tell the time of day.

Old Main wouldn’t be the same without this beautiful sphere and turtle, so it definitely had to make the list.

8. Class Of 1915: College Avenue Stone Retaining Wall On Front Campus

The famous stone wall that runs between the University Park campus and downtown College Avenue was the Class of 1915’s gift. The wall has been a popular place for students to meet and rest when the weather is warm since it was installed. The walk between downtown and campus wouldn’t be the same without this gift.

7. Class Of 1997: Peace Garden

Located on the lawn between the north end of the Henderson Building and just west of the HUB, the garden was built to “celebrate a peaceful and civil university community.”

The Peace Garden was established near the site of the tragic 1966 on-campus shooting in which Jillian Robbins killed student Melanie Spalla on HUB Lawn along with injuring another. The students of the Class of 1997 dedicated the Peace Garden to honor the life of their fellow student.

6. Class Of 1916: Allen Street Memorial Gate Entrance

Located at the intersection of College Avenue and Allen Street, the Class of 1916’s gift was the Allen Street Gates, the recognizable entrance to Penn State’s campus.

The 1904 St. Louis World’s Fair featured a Pennsylvania exhibit. After the fair ended, materials from the exhibit, including two stone pillars topped with lion statues, were transported to Penn State and were placed on each side of Allen Street. The lions bore shields with “PA” emblazoned on them.

In 1930, the lion pillars were removed when the black iron fencing was installed between the two largest stone columns. This fencing transformed Allen Street into a pedestrian mall below Pollock Road and has remained virtually unchanged since then. The pillar gateway at Burrowes and Pollock Roads, which contains two lion heads, serves as a replica of the original stone pillars.

5. Class Of 1999: HUB Aquarium

I may be a little biased in this ranking, but I love the HUB aquarium. The Class of 1999’s gift brings a calming aquarium to the bustling HUB. The Class of 1999 decided on a 500-gallon tropical fish tank and a 150-gallon tank. The tanks are now the home of 30 different species of fish, a large reef, about 250 pounds of live rock, and 100 pounds of sand. The tanks have become a bit more high-tech since their 1999 installation but are still the beautiful, lively tanks the Class of 1999 wanted.

4. Class Of 2013: We Are Sign

The 12-foot, 8,000-pound sculpture of the words “We Are” was the Class of 2013’s gift to Penn State. The words “We Are” encapsulate what it is to be a Penn Stater to many. The statue is mirror-polished solid stainless steel and is located on Curtin Road near the IM Building.

“We Are” is such an iconic part of being a part of the Penn State community, the statue that represents it had to make the top four.

3. Class Of 1992: The Pennsylvania State University Sign

The 70-foot-long Pennsylvania State University landmark sign is located on Park Avenue near Beaver Stadium. The famous graduation photo spot is a limestone structure that represents the university’s agricultural heritage and the materials used to construct Old Main. A bronze plaque was added in dedication to Norman Bedell, a Penn State official who passed away during the completion of the gift.

Those driving to Beaver Stadium or just around campus can’t miss this massive sign that has our university’s name plastered across it.

2. Class Of 1904: Old Main Clock

The Class of 1904’s gift is one of the most recognizable Penn State landmarks. The original Old Main building was first occupied in 1859 and had a simple round bell tower. A fire in 1892 burned part of the building’s roof, upper floor, and tower. They were all remodeled by architect J. Robert Cole, and the Class of 1904 presented a clock for the new tower.

Though there have been some modernizations done to the clock, the clock we see when we look up at the tower today is still the same one from the Class of 1904.

1. Class Of 1940: Nittany Lion Shrine

The iconic Nittany Lion Shrine — if you’ve been to Penn State chances are you stopped by the statue to snap a picture. This athletic symbol of Penn State is the North American felis concolor, variously known as the mountain lion, cougar, puma, or panther. The Nittany Lion has a long history on how it came to be, but it can’t be argued that this is by far the best class gift Penn State has received.