Tuesday was the last day on earth for the Philadelphia Spectrum, the famously pit-like arena that hosted the Flyers, 76ers, and scores of memorable concerts during its 43-year existence. On Twitter, people gathered to share memories and chronicle the Spectrum's (slow) ascent into building heaven.

National Journal's Major Garrett pressed Jake Tapper for his memories...

Wondering if @jaketapper has any pangs of nostalgia on this, the last day of The Spectrum. Even to a San Diego kid, that barn mattered!less than a minute ago via TweetDeck

...which prominently featured New Wave rockers

@MajoratNJ yes, it's sad. some good times there -- 76ers + concerts. SQUEEZE SINGLES TOURless than a minute ago via TweetDeck

Roots drummer and Philadelphia native Questlove paid his respects

rip to The Spectrum. join me tri state area.less than a minute ago via web

ESPN's Jayson Stark shared memories from three of the many, many Springsteen shows at the Spectrum.

Watching wrecking ball swing at Spectrum, as Springsteen sings. Of all the great games I saw there, none of them top the 3 Bruce shows I sawless than a minute ago via web

The Heritage Foundation's Rory Cooper objected to the specifics of the demolition strategy

Wait, they're demolishing the Philly Spectrum with a miniature wrecking ball? This makes no sense.less than a minute ago via web

The Hill's Jordan Fabian summed up the feelings of everyone outside Philadelphia

The wrecking ball is hammering away at the Spectrum as we speak. This. Is. Awesome.less than a minute ago via Seesmic twhirl

Deadspin's Barry Petchesky wondered how much longer the whole event was going to take

The Spectrum will be completely demolished sometime next April.less than a minute ago via web

Walkoff Walk's Rob Iracane remembered something important a day too late

Oh! I just remembered I left a sweater under my seat at the Spectrum back in 1995! It's not too late to go in and get it right?less than a minute ago via TweetDeck

The 700 Level toasted the building's resiliency

The Spectrum is gone. No wait, there's just a big hole in it. -- http://bit.ly/gXZXVnless than a minute ago via TweetDeck