During his visit, Emhoff also met with members of the local Jewish religious community, Polish state news agency PAP reported.
Earlier this month, the White House announced in a statement that Emhoff would travel to southern Poland and the German capital Berlin "to advance the Biden-Harris Administration’s efforts to combat antisemitism around the world and support Holocaust remembrance."
On Friday, Emhoff attended ceremonies in southern Poland to mark the 78th anniversary of the liberation of the Nazi German death camp of Auschwitz-Birkenau.
On Saturday and Sunday, he visited sites around Kraków.
During his stay in the historic Polish city, Emhoff walked around the streets of its former Jewish quarter, known as Kazimierz. The tour included the district's old synagogue, Jewish community center and Jewish cemetery.
Before World War II, about 60,000 Jews lived in Kraków. Today, many institutions in the city's Kazimierz district maintain Jewish traditions.
Message of support to Ukrainian refugees in Poland
On Saturday, Emhoff met with a group of Ukrainian refugees in Kraków. He told them that the United States would continue to make every effort to support their country amid Russia's invasion.
He also thanked the Polish government and "all the people who opened their homes and hearts" to Ukrainian refugees fleeing Russian aggression.
Sunday was the last day of Emhoff's visit to Poland.
Before heading to Berlin for the rest of his European trip, he toured historic sites in the southern Polish town of Gorlice, where his ancestors once lived and from where his great-grandparents emigrated to build a life in America more than a century ago, the PAP news agency reported.
Emhoff, who is the first Jewish spouse of a US vice president, is scheduled to be in Berlin on Monday and Tuesday, The Washington Times newspaper has reported.
Sunday was day 340 of Russia’s war in Ukraine.
Source: PAP, pap.pl, tvn24.pl