Yale Bowl. There are 30 tunnels into the stadium. Doesn't look like much from the outside, does it? But it's huge on the inside.
Evidence, credit & reuse: Reproduced from the credited source. A resized source derivative is used for display; the original-resolution source remains linked. Hosted by Silent Grounds Collective. SHA-256 of uploaded source: 7c9a0749fbe31cf431eeb9b0433803c24a91b5bb5850631e838941f1bc7edf05.
Source: Peter Dutton from Forest Hills, Queens, USA; CC BY 2.0; Wikimedia Commons
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Silent Grounds Collective, Yale Bowl, SGC-89, PHOTO-1851276, “Yale Bowl Exterior.” Source: Peter Dutton from Forest Hills, Queens, USA; CC BY 2.0; Wikimedia Commons. https://commons.wikimedia.org/wiki/File:Yale_Bowl_Exterior.jpg. Research edition, accessed 2026-09-24.