Muzeiko is the first and biggest children's science center in Bulgaria, and is located in the capital city of Sofia. It was developped by the America for Bulgaria Foundation and is currently owned and funded by Sofia Municipality. Muzeiko was opened in October 2015.

Muzeiko has over 100,000 visitors per year from the whole country and abroad.

Muzeiko learning team has developped science and art programs for children anged 4 to 12, as well as for school groups related to the school curriculum.

The museum works with scientists from Bulgaria and abroad and in its programs follows the lates concepts of STEAM learning.