The state dinner is one of Washington's most glamorous rituals. In honor of a visiting head of state, the president and first lady, dressed in designer duds, invite politicians, distinguished leaders, and celebrities to enjoy a unique multi-course meal on the White House's fine China in an exquisitely decorated room befitting the guest of honor.

Canadian Prime Minister Justin Trudeau and his wife Sophie Gregoire-Trudeau were celebrated Thursday night with an elegant wilderness-themed dinner of Alaskan Halibut casseroles, baby lamb chops, and maple pecan cake. The affair was the Obamas' 10th state dinner in their seven years in the White House. Let's take a photographic tour:

March 10, 2016 | Canadian Prime Minister Justin Trudeau and Sophie-Gregoire Trudeau | (NICHOLAS KAMM/AFP/Getty Images)

March 10, 2016 | (REUTERS/Gary Cameron)

April 28, 2015 | Japanese Prime Minister Shinzo Abe and Akie Abe | (REUTERS/Joshua Roberts)

April 28, 2015 | (REUTERS/Kevin Lamarque)

Sept. 25, 2015 | Chinese President Xi Jinping and Madame Peng Liyuan | (REUTERS/Mike Theiler)

Sept. 25, 2015 | (AP Photo/Manuel Bace Ceneta)

Feb. 12, 2014 | French President Francois Hollande | (REUTERS/Jonathan Ernst)

Feb. 12, 2014 | (MANDEL NGAN/Getty Images)

March 14, 2012 | British Prime Minister David Cameron and Samantha Cameron | (Mark Wilson/Getty Images)

March 14, 2012 | (Alex Wong/Getty Images)

Oct. 13, 2011 | South Korean President Lee Myung-bak and First Lady Kim Yoon-ok | (REUTERS/Jonathan Ernst)

Oct. 13, 2011 | (MANDEL NGAN/AFP/Getty Images)

June 7, 2011 | German Chancellor Angel Merkel and Joachim Sauer | (REUTERS/Larry Downing)

June 7, 2011 | (AP Photo/Pablo Martinez Monsivais)

May 19, 2010 | Mexican President Felipe Calderon and Margarita Zavala | (REUTERS/Jim Bourg)

May 19, 2010 | (REUTERS/Joshua Roberts)

Nov. 25, 2009 | Prime Minister of India Manmohan Singh and Gursharan Kaur | (REUTERS/Jason Reed)

Nov. 25, 2009 | (REUTERS/Jim Young)

Jan. 19, 2011 | Former Chinese President Hu Jintao | (REUTERS/Jim Young)

Jan. 19, 2011 | (REUTERS/Jason Reed)