1. Colmar Old Town, also known as Vieux Colmar, is a charming and picturesque neighborhood located in the city of Colmar, France. It is famous for its well-preserved medieval and Renaissance architecture, colorful half-timbered houses, and cobbled streets, making it one of the most popular tourist destinations in the Alsace region.

The Old Town is divided into several distinct areas, each with its own unique character. The \"Little Venice\" area features canals lined with charming houses and bridges, reminiscent of the famous Italian city. The \"Tanners’ District\" showcases the town’s historical ties to the leather industry, with beautifully decorated facades and wooden balconies. The \"Fishmongers’ District\" includes old fish stalls and shops in a lively atmosphere.

One of the most famous landmarks in Colmar Old Town is the Maison des Têtes (House of Heads), a 17th-century building adorned with dozens of sculpted heads. Another noteworthy attraction is the 13th-century Gothic-style Saint-Martin Church, known for its towering spire and stunning stained glass windows.

2. The Old Town of Colmar is open all year round, and there are no specific working hours as it is a public area. However, individual shops, restaurants, and attractions within the Old Town may have their own opening and closing times. It is advisable to check their respective websites or contact them directly for more information.

3. There is no entrance fee to visit Colmar Old Town as it is a public area. However, certain attractions within the Old Town may require a ticket for entry. For example, there may be a fee to visit the Maison des Têtes or to enter specific museums or exhibitions. Transportation within the Old Town can be done by walking, as it is a relatively small area. There are also bicycle rental shops available for those who prefer to explore on two wheels. Additionally, there are bus and tram services in Colmar that can be used to reach the Old Town.