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US President Barack Obama meets with Britain's Prince William, Duke of Cambridge, in the Oval Office at the White House in Washington on December 8, 2014. William and his wife Catherine are on a three-day visit to the US. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
US President Barack Obama meets with Britain's Prince William, Duke of Cambridge, in the Oval Office at the White House in Washington on December 8, 2014. William and his wife Catherine are on a three-day visit to the US.   AFP PHOTO/Nicholas KAMM        (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
Prince William and President Barack Obama share a laugh in the Oval Office. (NICHOLAS KAMM/AFP/Getty Images)

The Duke and Duchess of Cambridge, Prince William and Catherine, arrived to the U.S. on Sunday, December 7, landing in New York City, for a three-day East Coast visit.

Prince William continued his travels to Washington D.C. to meet with President Barack Obama, while Catherine held down the fort in New York City.

The two men talked for about 20 minutes in the The White House’s Oval Office discussing topics including endangered species, reports BBC News.

Here’s a look at their meeting:

WASHINGTON, DC - DECEMBER 08:  U.S. President Barack Obama (R) meets with Prince William (L), Duke of Cambridge, in the Oval Office of the White House December 8, 2014 in Washington, DC. Prince William and his wife Catherine, Duchess of Cambridge, are on a two-day official visit in the United States.  (Photo by Alex Wong/Getty Images)
The conversation appears to have taken a more serious turn. (Alex Wong/Getty Images)

Following his meeting with President Obama, Prince William gave a speech at the World Bank, where he continued the wildlife discussion, saying, “In my view, one of the most insidious forms of corruption and criminality in the world today is the illegal wildlife trade,” reports BBC.

Prince William is seen presenting at the World Bank in D.C.:

WASHINGTON, DC - DECEMBER 08:  Prince William, Duke of Cambridge (R) and World Bank President Jim Kim participate in the International Corruption Hunters Alliance Conference at the World Bank during an official three-day visit to the United States December 8, 2014 in Washington, DC. After meeting with President Barack Obama earlier in the day, the duke addressed the conference, calling the trade in elephants tusks, rhino horns and other animal parts as “one of the most insidious forms of corruption and criminality in the world today."  (Photo by Chip Somodevilla/Getty Images)
World Bank President Jim Kim introduces Prince William at the International Corruption Hunters Alliance Conference. (Chip Somodevilla/Getty Images)
WASHINGTON, DC - DECEMBER 08:  Prince William, Duke of Cambridge arrives at the International Corruption Hunters Alliance Conference at the World Bank during an official three-day visit to the United States December 8, 2014 in Washington, DC. After meeting with President Barack Obama earlier in the day, the duke addressed the conference, calling the trade in elephants tusks, rhino horns and other animal parts as  one of the most insidious forms of corruption and criminality in the world today."  (Photo by Chip Somodevilla/Getty Images)
Prince William makes his way to the podium. (Chip Somodevilla/Getty Images)
WASHINGTON, DC - DECEMBER 08:  Prince William, Duke of Cambridge addresses the International Corruption Hunters Alliance Conference at the World Bank during an official three-day visit to the United States December 8, 2014 in Washington, DC. After meeting with President Barack Obama earlier in the day, the duke addressed the conference, calling the trade in elephants tusks, rhino horns and other animal parts as  one of the most insidious forms of corruption and criminality in the world today."  (Photo by Chip Somodevilla/Getty Images)
He addresses the conference, bringing attention to illegal trade. (Chip Somodevilla/Getty Images)

You can read more outtakes of his speech here.

While Prince William was in D.C., Catherine visited with children, parents and staff members of Northside Center for Child Development in Harlem:

NEW YORK, NY - DECEMBER 08:  Catherine, Duchess of Cambridge (R), leaves with Chirlane McCray, the wife of the current New York mayor, after visiting Northside Center for Child Development on December 8, 2014 in New York City. The royal couple are on an official three-day visit to New York with Prince William also meeting President Barack Obama in Washington D.C today.  (Photo by Carl Court/Getty Images)
The Duchess of Cambridge is greeted by Chirlane McCray, the First Lady of New York City, who is married to Mayor Bill de Blasio, outside of the center. (Carl Court/Getty Images)
NEW YORK, NY - DECEMBER 08:  Catherine, Duchess of Cambridge (R), talks with children as she leaves with Chirlane McCray, the wife of the current New York mayor, after visiting Northside Center for Child Development on December 8, 2014 in New York City. The royal couple are on an official three-day visit to New York with Prince William also meeting President Barack Obama in Washington D.C on Monday.  (Photo by Carl Court/Getty Images)
The women meet with children and their parents. (Carl Court/Getty Images)
The Duchess lends a hand with the present wrapping inside. (Mark Stewart-Pool/Getty Images)
The Duchess lends a hand with the present wrapping inside. (Mark Stewart-Pool/Getty Images)
NEW YORK, NY - DECEMBER 08: Fans wait to see Catherine, Duchess of Cambridge, as she arrives at Northside Center for Child Development on December 8, 2014 in New York City. The royal couple are on an official three-day visit to New York with Prince William also due to meet President Barack Obama in Washington D.C on Monday. (Photo by Carl Court/Getty Images)
Fans wait to see the Duchess while she visits at Northside Center for Child Development. (Carl Court/Getty Images)
NEW YORK, NY - DECEMBER 08:  Catherine, Duchess of Cambridge, leaves after visiting Northside Center for Child Development on December 8, 2014 in New York City. The royal couple are on an official three-day visit to New York with Prince William also meeting President Barack Obama in Washington D.C on Monday.  (Photo by Carl Court/Getty Images)
The Duchess of Cambridge is given flowers as a send-off. (Carl Court/Getty Images)

The royal couple will reunite for an NBA game as part of their U.S. stay.

Are you excited about their visit?

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By Brigid Brown