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Pioneer square isn’t just old enough to drink, it’s now got its own cave features. Absolutely wild! If any geology or stalagmite/stalactite fellas wanna add anything by all means. On the northbound platform side, just next to the stairs. Apparently caused by calcium being leached from the concrete by water, forming Soda Straws. So cool. submitted by /u/Aggressive_Show_9792 |
