Earlier in the day, President Andrzej Duda presided over state ceremonies also attended by European Union president Donald Tusk, a former Polish prime minister.

Constructed with the 20th century's new technology of reinforced concrete, this exhibition hall can fit 10,000 people.

Its 2006 induction onto the UNESCO World Heritage List elevated it to one of the most desirable event venues in the world.

(AP Photo/Alik Keplicz) Demonstrators burn flares and wave Polish flags during the annual march to commemorate Poland's National Independence Day in Warsaw, Poland, Saturday, Nov. Thousands of nationalists marched in Warsaw on Poland's Independence Day holiday, taking part in an event that was organized by far-right groups.

(AP Photo/Czarek Sokolowski) Supporters of the anti-fascist coalition march through the downtown marking Poland's Independence Day, in Warsaw, Poland, Saturday, Nov. Thousands of nationalists marched in a demonstration organized by far-right groups in Warsaw Saturday, as Poles celebrated their country's Independence Day.

(AP Photo/Alik Keplicz) European Union President Donald Tusk, back row left, attends the official ceremony marking Poland's Independence Day, in Warsaw, Poland, Saturday, Nov. In the first row from left are, Polish Prime Minister Beata Szydlo, Senate Speaker Stanislaw Karczewski, Parliament Speaker Marek Kuchcinski and President Andrzej Duda.

Tusk joined celebrations in his native Poland on Independence Day, which celebrates the nation regaining its sovereignty at the end of World War I after being wiped off the map for more than a century.

"We are proud that so many Poles have decided to take part in a celebration connected to the Independence Day holiday." A smaller counter-protest by an anti-fascist movement also took place.

Organizers kept the two groups apart to prevent violence.

However, it is important to visit to understand the true cost that these camps exacted on the generations that followed their closure. Wiezniów Oswiecimia 20 32-603 Oswiecim, Poland, Phone: 48 33 844 8 099 Weekend Getaways, Attractions and Things to do near me: CA, NY, From NYC, LA, SF, Ohio, TX, FL, PA, FL, CO, NC, SC, TX, NC, Romantic, NJ, Anniversary, CA, DC, Seattle, San Diego, Sanibel, AZ, Denver, Dallas, Seattle, Poconos, New Orleans, Miami, Tampa, Orlando, Montauk One of the greatest architectural achievements of the 20th century, visitors flock to admire Centennial Hall's unconventional construction.

Aptly named to commemorate the 100th anniversary of the Battle of Leipzig, won by the anti-French coalition against Napoleon Bonaparte, this monumental building was designed by Max Berg.

Whether it's the glitz and glam of modern Warsaw with its dazzling night life that you crave or the quiet, Old World charm and history of Kraków that you seek, there is a place that will resonate with your vacation goals in Poland. The infamous histories of Auschwitz and Birkenau are well known to many.