Due to a special event, on Wednesday, July 8, there will be no tours of the U.S. Capitol after 11 a.m. Emancipation Hall and Exhibition Hall in the Capitol Visitor Center will be unavailable all day. While reservations prior to 11 a.m. will be honored, same-day passes will not be available. The Capitol Visitor Center will close at noon except for individuals on official business and those going to the House and Senate Galleries.

Exhibit Theme

The Panama Canal

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The Gates, Pedro Miguel Lock,...
Image Caption

The Gates, Pedro Miguel Lock, lithograph by Joseph Pennell, 1912

The Pedro Miguel lock was one of three constructed for the Panama Canal so that ships could navigate the change in levels between the oceans. Senator Mark Hanna of Ohio, who favored Panama, persuasively argued that a Nicaraguan canal would be longer, with more locks, and that engineers preferred a Panama route.

Joseph and Elizabeth Robins Pennell Collection, Prints and Photographs Division, Library of Congress

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