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Atlas Obscura - Latest • Jan. 25, 2026, 3:18 p.m.
Penn State Obelisk in State College, Pennsylvania
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Like the National Mall in Washington, D.C., the Pattee Mall on Penn State’s University Park campus features its own prominent obelisk. Constructed in 1896 at what was then the Pennsylvania State College, the Obelisk (or “polylith”) stands 33 feet tall and contains 281 blocks sourced from 139 locations, primarily within Pennsylvania.
It was constructed the same year that Penn State’s School of Mines (now the College of Earth and Mineral Sciences) was founded. The Obelisk stands next to the former site of the historic Armory building and is now between the modern Willard and Sackett buildings adjacent to Old Main.
The Obelisk was built to showcase the weathering of Pennsylvania building stones and their subsequent commercial value. Its stones are ordered sequentially from oldest on the bottom (pre-Cambrian) to newest on the top (Triassic).
It was constructed the same year that Penn State’s School of Mines (now the College of Earth and Mineral Sciences) was founded. The Obelisk stands next to the former site of the historic Armory building and is now between the modern Willard and Sackett buildings adjacent to Old Main.
The Obelisk was built to showcase the weathering of Pennsylvania building stones and their subsequent commercial value. Its stones are ordered sequentially from oldest on the bottom (pre-Cambrian) to newest on the top (Triassic).
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