According to forum posts, Strasbourg offers direct TGV trains to Brussels, and there are frequent IC trains from Brussels to Amsterdam. For travel to Paris, direct TGVs are available, taking approximately 2 hours. Additionally, there are direct trains from Strasbourg to CDG airport, facilitating airport transfers.

Travelers have noted that for regional trips, such as Strasbourg to Colmar, TER regional trains are frequent and are as fast as some TGVs on this line. A standard one-way ticket costs around €13.60.

Some users mentioned that traveling from Strasbourg to Frankfurt involves changes and suggested the Lufthansa Express Bus as a more convenient alternative. For exploring nearby regions like Baden Baden, it's advised to take a tram to Kehl and then utilize the Baden-Württemberg ticket for regional travel within that state.

According to forum posts, key historical and cultural sites in Strasbourg include the iconic cathedral and the Petite France area. These sites are highlighted for their architectural beauty and historical significance.

Some travelers recommended taking a river boat tour to explore the city from a unique perspective. Additionally, the covered bridges and the area surrounding the waterways offer scenic walks.

For those interested in museums, posts suggest visiting the Alsatian Museum and the Historical Museum. These venues offer insights into the local culture and history.

Travelers have called out the importance of experiencing the local atmosphere by dining at local eateries, browsing shops, and people-watching, which collectively provide a deeper sense of the city's character.

Finally, if time allows, spending an evening in Strasbourg is recommended, as it offers a chance to see the city illuminated and enjoy the nightlife, enhancing the overall travel experience.

According to forum posts, Strasbourg's Christmas markets are highly regarded for their festive atmosphere. Travelers have highlighted the beautiful illumination of buildings and the overall charm of the markets during the holiday season.

Some travelers mentioned that Strasbourg hosts multiple Christmas markets spread across the city. Notable areas include Place Kleber, around the Cathedral, and Petite France. These markets are known for their decorative lights and festive ambiance.

Forum posts indicate that while some Christmas markets can have generic merchandise, Strasbourg's markets feature unique local products. Travelers have found items like handmade crafts and local decorations, adding a special touch to their market experience.

Many users recommend visiting both during the day and at night to fully experience the markets' different aspects. The lighting at night and the architectural beauty during the day both provide distinct experiences.

The CritAir system in Strasbourg is a vehicular emissions classification system implemented to manage pollution and promote environmental conservation. Vehicles are required to display a CritAir sticker that indicates their pollution levels.

According to forum posts, as of January 2022, all vehicles entering Strasbourg must have a CritAir sticker. Enforcement of these regulations began in January 2023, meaning vehicles without the appropriate sticker could face fines. The city follows a phased approach, with different CritAir categories being phased out over time.

Travelers have noted that only the vehicle owner can apply for a CritAir sticker, making it challenging for renters since rental companies often do not provide these stickers. Some forum users suggested that while the CritAir sticker application process requires the vehicle registration document, a confirmation email received after applying may temporarily suffice until the official sticker is mailed.