Björn Höcke said Germany has been made to look Björn Höcke over Hilter's rule
Björn Höcke of the Alternative for Germany (AfD) party also pledged to rewrite the history books insisting Germany was the victim of a "war crime" during the Second World War.
And he said, ahead of a party summit on Europe, that the country has been made to look “lousy and ridiculous” following the war.
Mr Höcke made the controversial comments in a speech to a cheering audience in a Dresden beer hall on Tuesday night.
We need a complete 180-degree turn
Björn Höcke of the Alternative for Germany
He said: “Our mentality is still that of a totally defeated people.
“We Germans, our people, are the only people in the world who planted a monument of shame in the middle of our national capital.”
Addressing a captive audience Mr Höcke, 44, said the country's Nazi past had been made to look “lousy and ridiculous” in schools.
He went on to insist that his surging party would “rewrite the history books” if it came to power.
Hilter orchestrated the 'seizure of power' in 1933 and led the world to war
The married father-of-four whose grandparents were expelled ethnic Germans said that the country has to completely rethink its view on the war.
He added: “This ridiculous coping policy paralyses us.
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"We need a complete 180-degree turn.
“Until now, we have not been able to mourn our own sacrifice.”
The AfD are on the rise in Germany and organise regular protests
Mr Höcke also said the British-American bombing of the city of Dresden in February 1945 was a “war crime” designed to “rob us of our collective identity”.
More than 60 million people were killed in the Second World War including six million Jewish people who were persecuted by the evil Nazi regime.
Two decades before the war began in September 1919, Nazi dictator Adolf Hitler announced that the "ultimate goal must definitely be the removal of the Jews altogether".
Mrs Merkel attended the opening of an exhibition marking Hitler's 80th chancellery anniversary
Now Jewish groups have reacted to the AfD's comments insisting law school drop out Höcke apologise.
Israel’s ambassador to Germany, Yakov Hadas-Handelsman, said: “An apology to all the victims of National Socialism would be appropriate, starting with the six million Jews who were killed in industrial mass murder".
Three years ago Germany marked the 80th anniversary of Adolf Hitler's appointment as chancellor.
The AfD is on the rise in Germany and is expected to make gains in October's election
Angela Merkel opened the exhibition in the former SS headquarters in Berlin which offered detail on how Hitler rose to power.
Mrs Merkel said Hitler's success was because "the majority had, at the very best, behaved with indifference".
The three-year-old AfD party is set to storm to success in October's general election.
But it comes at a time when politicians from Chancellor Merkel's Christian Democratic Union (CDU) called on an alliance between the parties.
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The worrying development could see the polarised groups join forces in a new alliance that could signal a significant step change in Mrs Merkel's policies.
Responding to criticism over her failed migrant policy Mrs Merkel has threatened to begin large scale deportations.
While in October CDU MEP Hermann Winkler called for a coalition between the AfD and Mrs Merkel's party.
He said: "If there is a conservative majority together with the AfD, we should form a coalition with them."