The city of Madrid is the capital of Spain. It is located in the center of the country, and has a population of over 3 million people. The history of Madrid is long and complex, dating back to the 8th century BC. The city has been ruled by many different empires and countries over the years, and has played a significant role in Spanish history. Today, Madrid is a vibrant and exciting city, with a rich culture and a diverse population. It is a popular tourist destination, and is home to some of the most famous landmarks in Spain, including the Royal Palace and the Prado Museum.

The city of Bacau is located in the northeast of Romania, in the historical region of Moldavia. The first mention of the city dates back to the year 1408, when it was mentioned as a village called "Vaslui de Sus". The city was later developed by the Moldavian prince Stephen the Great, who built a fortress there in 1466. The city became an important commercial and cultural center in Moldavia. In the late 19th century, Bacau was annexed by Romania and became the capital of the Bacau County. The city suffered heavy damage during World War II, but was rebuilt afterwards. Bacau is now a major industrial center and transportation hub in Romania.