It's hard to believe it's been 10 years, but the best live action DC event ever debuted a decade ago -- and it's still the gold standard.

The Arrowverse brought to life many beloved iterations of classic and obscure DC characters through a line of interconnected shows that varied in quality.

Some highlights of the Arrowverse’s crossovers include the heroes travelling to Earth-X to defeat their evil Nazi doppelgangers and Oliver Queen becoming the Spectre to save the multiverse in “Crisis ...