The <a href="https://en.wikipedia.org/wiki/Seikan_Tunnel" id="mw3g" rel="mw:WikiLink" title="Seikan Tunnel">Seikan Tunnel</a>, the longest tunnel in the world with an undersea segment, opens between <a href="https://en.wikipedia.org/wiki/Aomori" id="mw3w" rel="mw:WikiLink" title="Aomori">Aomori</a> and <a href="https://en.wikipedia.org/wiki/Hakodate" id="mw4A" rel="mw:WikiLink" title="Hakodate">Hakodate</a>, Japan.<sup about="#mwt137" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-26"}}' id="cite_ref-26" rel="dc:references" typeof="mw:Extension/ref"><a href="./March_13#cite_note-26" id="mw4Q" style="counter-reset: mw-Ref 26;"><span class="mw-reflink-text" id="mw4g">[26]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-26"><cite about="#mwt134" class="citation book cs1" id="CITEREFLangmeadGarnaut2001">Langmead, Donald; Garnaut, Christine (2001). <span class="id-lock-registration" id="mwCA4" title="Free registration required"><a class="external text" href="https://archive.org/details/encyclopediaofar0000lang" id="mwCA8" rel="mw:ExtLink nofollow"><i id="mwCBA">Encyclopedia of Architectural and Engineering Feats</i></a></span>. ABC-CLIO. p.<span id="mwCBE" typeof="mw:Entity"> </span><a class="external text" href="https://archive.org/details/encyclopediaofar0000lang/page/301" id="mwCBI" rel="mw:ExtLink nofollow">301</a>. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCBM" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCBQ" typeof="mw:Entity"> </span><a href="./Special:BookSources/9781576071120" id="mwCBU" rel="mw:WikiLink" title="Special:BookSources/9781576071120"><bdi id="mwCBY">9781576071120</bdi></a><span class="reference-accessdate" id="mwCBc">. Retrieved <span class="nowrap" id="mwCBg">11 March</span> 2018</span>.</cite><span about="#mwt134" class="Z3988" id="mwCBk" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Encyclopedia+of+Architectural+and+Engineering+Feats&amp;rft.pages=301&amp;rft.pub=ABC-CLIO&amp;rft.date=2001&amp;rft.isbn=9781576071120&amp;rft.aulast=Langmead&amp;rft.aufirst=Donald&amp;rft.au=Garnaut%2C+Christine&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fencyclopediaofar0000lang&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMarch+13"></span></span>