What is kalimarmaro?

Kalimarmaro, also known as the Panathenaic Stadium, is an ancient stadium located in Athens, Greece. The stadium was built in the 4th century BC for the Panathenaic Games and was reconstructed in the 2nd century AD. It can seat more than 70,000 spectators and is made entirely of marble. The stadium has been the site of many important events throughout history, including the first modern Olympic Games in 1896. Today, it is used for cultural events and athletic competitions. It is a popular tourist destination and one of Athens's most iconic landmarks.