The temple's north tower, which holds a newly discovered chamber Marcus Mller / Athribis ProjectArchaeologists have uncovered a hidden gateway to a 2,100-year-old temple built into a cliff face in Egypt. The stone structure is located in the ancient city of Athribis, about 125 miles north ofLuxor.The ornate entrance is known as a pylon, or two towers flanking a main entrance, according to a statement from the University of Tbingen in Germany. The team also discovered a second door on the pylon, which leads to a hidden staircase that once featured at least four different flights. These flights led to an upper floor that has since been destroyed.In the northern tower, archaeologists found reliefs of the Egyptian king Ptolemy VIII, who ruled during the second century B.C.E. The artworks depict the king, known for his unstable reign and clashes with his family, offering sacrifices to the lion-headed goddess Repit and her son Kolanthes. This unique relief depicts a falcon-headed decan. Marcus Mller / Athribis ProjectThats not all that the researchers discovered in the north tower. They also stumbled upon a hidden chamber, which measures about 20 feet long and 10 feet wide. The room was once a storage area that held temple utensils and jars called amphorae.More reliefs were found near this chambers entrance. These artworks included images of the fertility god Min-Ra and creatures known as decans, which are depicted with human bodies and animal heads: One has the head of a falcon, while the other has the head of an ibis. Such creatures represented clusters of stars that the Egyptians used to tell time at night.The team also found a second relief of Repit. The temple could be dedicated to Repit, though researchers cant know that for sure. As Christian Leitz, an Egyptologist at the University of Tbingen who led the research, tells Live Sciences Owen Jarus, The name of this building is still not known.Sarah Symons andJuan Antonio Belmonte, archaeoastronomers who have worked in Egypt but were not involved in the research, both tell Live Science that the newly discovered temple entrance is interesting but that more information on the temple and decans is needed. A view of the northern tower of the pylon Marcus Mller / Athribis ProjectExcavations at the temple have been ongoing for two years. This site is part of a larger temple district that researchers have been studying since 2012. They think the complex was likely built sometime between 144 B.C.E. and 138 C.E. Even after so much time, its many mysteries are still unfolding.Newsweek's Aristos Georgiou writes that the larger complex also includes evidence of a settlement and the remains of a necropolis, as well as ancient quarries. Researchers think more discoveries are waiting to be uncovered.The complete scientific excavation started with us and will last some time, Leitz tells Newsweek. We will not finish it this season.Get the latest stories in your inbox every weekday.