In which state would you find the Las Vegas Strip?

In which state would you find the Hollywood Sign? In which state would you find Niagara Falls (American side)? In which state would you find Walt Disney World? In which state would you find Disneyland? In which state would you find the French Quarter? In which state would you find the Crazy Horse Memorial? In which state would you find the Rock and Roll Hall of Fame? In which state would you find the Country Music Hall of Fame?