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Keeping Congress Cool for the Summer
From blocks of ice and wooden fans to modern air conditioning systems, the Architect of the Capitol has been doing what it takes to cool Congress for over 135 years.
Public Notice
2026 "A Capitol Fourth" Concert Security, Weather, Prohibited Items & Road Info | USCP.gov
The annual concert celebrating Independence Day will be broadcast live from the West Front of the U.S. Capitol. Here's what to know before you go.
History & Discoveries
Allyn Cox: An Artist's Materials
The AOC Curator Division maintains a small collection of objects related to Cox's work, representing project material left during his design and painting of the House corridors in the 1970s.
Public Notice
Celebrate America 250 at the U.S. Capitol
Join us July 2-4, 2026, for our celebration! From 9:30 a.m.-3:30 p.m. we will have free family-friendly events, interactive experiences and lots of patriotic fun.






Comments
I'm speculating that the numbers on the block and the coin bags in the Capitol Extension Pediment were a praise to the Pierce Administration's success in negotiating the Canadian Reciprocity Treaty of 1854 (signed June 5). Reportedly, Mr. William L. Marcy ( Sec. of State) had bribed Halifax, Fredericton, and St. John's in order to facilitate passage; while Lord Elgin floated it through the U.S. Senate on an ocean of Champagne. I have no actual knowledge, but suggest that the coin bags represent the small relative price paid for the greater speculation of what the Treaty would have been sold as being worth to the USA at the time. - Joe
These close-up photos are beautiful and your descriptions made me want to see every detail. I would love to see this photo spread (and more) as a special exhibit in the visitors’ center. Explanatory notes accompanying the exhibit would reveal the thinking of the time and help us understand how ideas change over a historical period.
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