Aachen, located in western Germany near the borders with Belgium and the Netherlands, is a city rich in history, culture, and architectural beauty. Here are some highlights and interesting things to explore in Aachen:

1. Aachen Cathedral (Dom):  A UNESCO World Heritage Site and one of Germany's most iconic landmarks, Aachen Cathedral is a masterpiece of medieval architecture. Built by Charlemagne in the 8th century, it served as the coronation church for German kings and queens for centuries. Don't miss the Palatine Chapel, with its stunning mosaics and Charlemagne's throne.

2. Charlemagne's Throne Room: Adjacent to the cathedral is the Aachen Town Hall, where you can visit the historic Rathaus (town hall) and see the Königssaal (King's Hall) or Charlemagne's Throne Room. This impressive hall was used for banquets and ceremonies during Charlemagne's time and features beautiful frescoes depicting scenes from his life.

3. Elisenbrunnen: This neoclassical pavilion houses one of Aachen's famous mineral springs. Visitors can taste the healing waters and enjoy the beautiful surrounding gardens and fountains.

4. Ludwig Forum for International Art: For art enthusiasts, the Ludwig Forum offers a diverse collection of contemporary art, including works by renowned artists such as Andy Warhol and Joseph Beuys.

5. Aachener Printen: A visit to Aachen wouldn't be complete without trying the local specialty, Aachener Printen. These delicious gingerbread-like cookies have been made in Aachen since the Middle Ages and come in various flavors like honey, cinnamon, and chocolate.

6. Carolus Thermen: Relax and rejuvenate at the Carolus Thermen, Aachen's thermal baths. With a variety of pools, saunas, and wellness treatments, it's the perfect place to unwind after a day of sightseeing.

7. Marschiertor: One of Aachen's remaining medieval gates, the Marschiertor offers a glimpse into the city's past. Climb to the top for panoramic views of Aachen's historic center.

Aachen's blend of history, culture, and culinary delights makes it a charming destination worth exploring. Whether you're fascinated by ancient architecture, art, or simply want to indulge in local delicacies, Aachen has something to offer every traveler.