Prince Charles and his wife are finishing up their visit to Washington, D.C. with a whirlwind day that includes meeting with President Barack Obama.

Prince of Wales and the Duchess of Cornwall began Thursday with a visit to the U.S. Armed Forces Retirement Home, where residents lined the corridors waiting for the royal couple. They stopped and chatted with residents one by one.

Later in the day, Prince Charles visited a charter school for adult immigrants while his wife Camilla toured a forensic sciences center.

The couple next will meet with Obama and Vice President Joe Biden at the White House before a number of other events.

The couple arrived Tuesday and they are visiting cultural and educational sites. It's Prince Charles' 20th visit to the U.S.