Excalibur Hotel - Casino, Las Vegas
If you have kids a great thing to do is to attend the Medieval dinner show at the Excalibur. It includes knights, jousting, sword play etc.
Casino with Medieval castle theme. Has nightly dinner shows similiar to Medieval times restaurants. Great place to stay if you have kids as there is a large arcade and shops aimed at families.
Rumor has it, this is the cheapest place to stay on the strip in Vegas. I've been told the rooms aren't themed but who cares when the price is really low!
The Excalibur Casino has a medieval theme. The building is a fairy-tale castle, like the one at Disneyland.