Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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The Cannon House Office Building, completed in 1908, is the oldest congressional office building as well as a significant example of the Beaux Arts style of architecture.
The Cannon House Office Building, completed in 1908, is the oldest...

Featured

A view of the Capitol Visitor Center lit up at night
The Office of Congressional Accessibility Services (OCAS) provides a variety...

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Painted portrait of Dr. William Thornton
The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Nitrate vault at the Library of Congress Packard Campus
The Architect of the Capitol (AOC) is responsible for managing all of the...

What's New

EVENTS

Dec
21
Sun
DAILY
Event Location:
Capitol Grounds
Event Tags:
Holiday Events, Kid Friendly Events
The 2014 U.S. Capitol Christmas Tree will be lit from nightfall (around 5 p.m.) until 11 p.m. each evening now through January 1, 2015. The tree was first lit by Speaker of the House John A. Boehner during a ceremony on Tuesday, December 2.  This year's tree is a white spruce from the Chippewa National Forest in Cass Lake, Minnesota. It was harvested on October 29, will travel from Minnesota... More »
Dec
21
Sun
DAILY
Event Location:
U.S. Botanic Garden
Event Tags:
Exhibit, Holiday Events
Each year, the U.S. Botanic Garden creates displays to give visitors one of the region's most delightful holiday exhibitions. Come explore the seven seas, guided by the light of 33 lighthouses and navigate your way through this nautical wonderland. Get your telescopes primed and keep an eye out for sea creatures, mermaids and even a pirate ship, all created with plant parts. Don't worry if you... More »
Dec
22
Mon
DAILY
Event Location:
Capitol Grounds
Event Tags:
Holiday Events, Kid Friendly Events
The 2014 U.S. Capitol Christmas Tree will be lit from nightfall (around 5 p.m.) until 11 p.m. each evening now through January 1, 2015. The tree was first lit by Speaker of the House John A. Boehner during a ceremony on Tuesday, December 2.  This year's tree is a white spruce from the Chippewa National Forest in Cass Lake, Minnesota. It was harvested on October 29, will travel from Minnesota... More »
Dec
22
Mon
DAILY
Event Location:
U.S. Botanic Garden
Event Tags:
Exhibit, Holiday Events
Each year, the U.S. Botanic Garden creates displays to give visitors one of the region's most delightful holiday exhibitions. Come explore the seven seas, guided by the light of 33 lighthouses and navigate your way through this nautical wonderland. Get your telescopes primed and keep an eye out for sea creatures, mermaids and even a pirate ship, all created with plant parts. Don't worry if you... More »
Dec
23
Tue
DAILY
Event Location:
Capitol Grounds
Event Tags:
Holiday Events, Kid Friendly Events
The 2014 U.S. Capitol Christmas Tree will be lit from nightfall (around 5 p.m.) until 11 p.m. each evening now through January 1, 2015. The tree was first lit by Speaker of the House John A. Boehner during a ceremony on Tuesday, December 2.  This year's tree is a white spruce from the Chippewa National Forest in Cass Lake, Minnesota. It was harvested on October 29, will travel from Minnesota... More »
Dec
23
Tue
DAILY
Event Location:
U.S. Botanic Garden
Event Tags:
Exhibit, Holiday Events
Each year, the U.S. Botanic Garden creates displays to give visitors one of the region's most delightful holiday exhibitions. Come explore the seven seas, guided by the light of 33 lighthouses and navigate your way through this nautical wonderland. Get your telescopes primed and keep an eye out for sea creatures, mermaids and even a pirate ship, all created with plant parts. Don't worry if you... More »
Dec
23
Tue
WEEKLY
Event Location:
U.S. Botanic Garden
Event Tags:
Holiday Events, Music Events
Evenings at the Conservatory are magical! Join us for live seasonal music in the Garden Court.  Please note: Limited seating available on a first come, first served basis.  Date: Tuesdays and Thursdays December 4 - 30, 2014 Time: 6 p.m. to 8 p.m. Location: U.S. Botanic Garden Conservatory Garden Court FREE: No pre-registration required  For a complete calendar of events at the U.S. Botanic Garden... More »
Dec
24
Wed
DAILY
Event Location:
Capitol Grounds
Event Tags:
Holiday Events, Kid Friendly Events
The 2014 U.S. Capitol Christmas Tree will be lit from nightfall (around 5 p.m.) until 11 p.m. each evening now through January 1, 2015. The tree was first lit by Speaker of the House John A. Boehner during a ceremony on Tuesday, December 2.  This year's tree is a white spruce from the Chippewa National Forest in Cass Lake, Minnesota. It was harvested on October 29, will travel from Minnesota... More »
Dec
24
Wed
DAILY
Event Location:
U.S. Botanic Garden
Event Tags:
Exhibit, Holiday Events
Each year, the U.S. Botanic Garden creates displays to give visitors one of the region's most delightful holiday exhibitions. Come explore the seven seas, guided by the light of 33 lighthouses and navigate your way through this nautical wonderland. Get your telescopes primed and keep an eye out for sea creatures, mermaids and even a pirate ship, all created with plant parts. Don't worry if you... More »
Dec
25
Thu
DAILY
Event Location:
Capitol Grounds
Event Tags:
Holiday Events, Kid Friendly Events
The 2014 U.S. Capitol Christmas Tree will be lit from nightfall (around 5 p.m.) until 11 p.m. each evening now through January 1, 2015. The tree was first lit by Speaker of the House John A. Boehner during a ceremony on Tuesday, December 2.  This year's tree is a white spruce from the Chippewa National Forest in Cass Lake, Minnesota. It was harvested on October 29, will travel from Minnesota... More »

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