…until something else comes along. But for now, the Dubai Tower is both the tallest building and tallest free-standing structure in the world:

The Burj Dubai tower is now 555 metres (1,831.5 feet) tall and has surpassed the 553-metre- (1,824.9-feet) CN Tower in Toronto, Canada, which held the record for the world’s tallest free-standing structure since 1976, developers Emaar Properties said in a statement. […]

The developer announced in July that Burj Dubai, Arabic for Dubai Tower, had exceeded Taiwan’s Taipei 101 which is 508 metres (1,676.4 feet) tall, to become the tallest building in the world.

The building’s maximum height? It’s a secret.