Here are some museums in the USA that are dedicated to neon and neon/LED signs:

• Fremont Street Experience (Las Vegas, NV)
• The Neon Museum of Las Vegas (aka the “Neon Boneyard” – Las Vegas, NV)
• The American Sign Museum (Cincinnati, OH)
• The Museum of Neon Art (Glendale, CA)
• Neon Alley (Pueblo, CO)
• The Lost Highway Museum (Pomeroy, WA)
• Yakima Valley Museum – Neon Garden (Yakima, WA)