Early in the 20th century, table games dominated – but by the 1970s, it was all about the slot machine. These addictive gambling machines were heavily regulated in many states at this time, but – in common Vegas style – laws were relaxed here. These glittering rows of machines were snapped in Circus Circus, a casino hotel that opened on The Strip in 1968 (casino only) and is still going strong.

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Nostalgic Las Vegas photos through the decades