7 abandoned stadiums around the world that used to host huge events

• Stadiums become abandoned and demolished if they aren't able to keep up with growing technology and crowd levels.

• Some Olympic venues are built solely for that event and then lay vacant after the games are complete.

• The Houston Astrodome is still vacant.

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While we're used to seeing entertainment venues bustling with people filing in to see the latest artists or sporting events, it's not uncommon to find huge stadiums around the world abandoned and crumbling.

Some stadiums didn't stand the test of time as technology developed and crowd levels increased, while some just became forgotten after unplanned and sometimes tragic events. Many large stadiums are demolished after they're no longer in use, but many just lay vacant and overrun by vegetation.

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