Great Captain Island Lighthouse
... that the Great Captain Island Lighthouse started cracking only a decade into its lifetime?
... that the <b id="mwBrc"><a class="mw-redirect" href="./Great_Captain_Island_Lighthouse" id="mwBrg" rel="mw:WikiLink" title="Great Captain Island Lighthouse">Great Captain Island Lighthouse</a></b> <i id="mwBrk">(pictured)</i> started cracking only a decade into its lifetime?