The Boulder Dam Hotel was built in 1933 to accommodate visiting officials as well as tourists wishing to get a look at Hoover Dam while it was being constructed. Today, the eloquent hotel boasts 22 rooms and houses the Boulder City and Hoover Dam Museum. As is to be expected with an old hotel, ghost stories abound.
If you go:
The hotel is in the middle of the historic downtown district, so most of the district area is within walking distance. Admission to the museum is only $2.00, waived if you are staying at the hotel. A cooked breakfast in the hotel restaurant is also included with your stay. Reservations are a must.
Links:

1305 Arizona Street
Boulder City, Nevada 89005 USA
Phone Numbers:
Reservations
+1 (702) 293-3510
+1 (702) 293-3510