President Donald Trump wants to build a massive arch near the Lincoln Memorial. He says the idea dates back around 200 years but was interrupted by the Civil War — despite history suggesting that wasn't what happened. Trump nonetheless envisions the arch as reminiscent of Paris' Arc de Triomphe. He plans to unveil it as part of America's 250th birthday celebrations. Trump has similarly argued that his new ballroom is justified since officials throughout history clamored for one, another dubious claim.