Start our journey with Brandenburg's most famous palaces, which are true gems of architecture and history.

The first stop is the famous Sanssouci Palace in Potsdam. This Rococo gem, a UNESCO World Heritage Site, was built in 1747 as the summer residence of King Frederick II of Prussia. The palace's name, meaning 'without cares,' perfectly captures the atmosphere of the place. The palace is surrounded by beautiful terraced gardens, which are perfect for a family picnic. Tickets to the palace cost about 12 euros for adults, children under 18 get in for free. It's worth booking tickets online to avoid queues. Address: Maulbeerallee, 14469 Potsdam.

The next item on our list is the Charlottenburg Palace in Berlin. This is the largest palace in the German capital, built at the turn of the 17th and 18th centuries. The palace impresses with its baroque architecture and rich interiors. Particularly noteworthy are the Porcelain Room and the apartments of Frederick the Great. The extensive palace park is an ideal place for children to relax and play. The entrance ticket to the palace costs about 17 euros for adults, children under 18 enter for free. Address: Spandauer Damm 10-22, 14059 Berlin.

We can't miss the Brandenburg Gate in Potsdam, which is one of the three surviving city gates. Built between 1770 and 1771 in the classicist style, the gate is an impressive example of Prussian architecture. It's a great place for a family photo and the start of a stroll through the charming Old Town. Admission is free and the gate is available to admire 24 hours a day. Address: Luisenplatz, 14471 Potsdam.

To conclude this part of our trip, we will visit the New Palace in Potsdam. This monumental Baroque palace, built between 1763 and 1769, is the last great work of the Prussian Baroque. The palace impresses not only from the outside, but also from the inside - the Marble Hall and the Shell Grotto are especially worth seeing. The park surrounding the palace is an ideal place for a family stroll. The entrance ticket costs about 8 euros for adults, children under 18 enter for free. Address: Am Neuen Palais, 14469 Potsdam.

All of these sites are easily accessible by public transportation from Berlin or Potsdam. It is worth planning a day trip to fully enjoy the charm of these historical sites. Remember to wear comfortable shoes and headgear on sunny days!

After learning about Brandenburg's historical heritage, it's time to discover its modern face. Come explore places that combine history with modernity and offer an unforgettable experience for the whole family.

Let's start with Potsdamer Platz (Potsdamer Square) in Berlin. It's a place that perfectly illustrates the transformation of the city after German reunification. Once divided by the Berlin Wall, it is now bustling and a symbol of modernity. On the square you will find numerous restaurants, cinemas and shopping centers. It's a great place for a family dinner or shopping. We especially recommend a visit to the Museum of Film and Television, which is located nearby. The square is easily accessible by public transportation - the nearest subway station is 'Potsdamer Platz'. Address: Potsdamer Platz, 10785 Berlin.

The next point on our tour is the Berliner Fernsehturm, or the Berlin Television Tower. This 368-meter tower offers unforgettable views of the entire city. At a height of 203 meters, there is a viewing platform and a rotating restaurant. It's a great place to show children the skyline of Berlin and the surrounding area. Admission tickets are best purchased online to avoid queues. Prices start at €17.50 for adults and €10.50 for children (ages 4-14). Address: Panoramastraße 1A, 10178 Berlin.

For history buffs, we recommend a visit to the House of Brandenburg-Prussian History in Potsdam. This modern museum presents the fascinating history of the region from the Middle Ages to the present. Interactive exhibitions ensure that even the youngest visitors will not be bored. Ticket prices are set by the visitors themselves, which is an interesting solution. The museum is open Tuesday through Sunday from 10 a.m. to 6 p.m. Address: Am Neuen Markt 9, 14467 Potsdam.

Returning to parks and gardens, we can't miss Neptune's Grotto in Potsdam. This Baroque fountain, designed in the mid-18th century, is one of the most beautiful examples of garden art in Europe. Decorated with shells and minerals, the grotto delights both adults and children. It's the perfect place for a short rest while visiting Sanssouci Park. Admission to the park and the grotto is free. Address: Schopenhauerstraße, 14469 Potsdam.

To conclude this part of our trip, let's visit the Marble Palace in Potsdam. This classicist palace, located on the Heiliger See lake, impresses with its elegant architecture and beautiful interiors. The park surrounding the palace is the perfect place for a family picnic or a relaxing stroll. An entrance ticket to the palace costs about 8 euros for adults, children under 18 get in for free. Address: Im Neuen Garten 10, 14469 Potsdam.

All of these places are well connected to the center of Berlin and Potsdam. Consider purchasing the Berlin-Brandenburg Ticket, which allows unlimited travel on regional trains and public transportation in both cities and all of Brandenburg.

After extensive sightseeing of historical sights and modern attractions, it's time to relax in nature. Brandenburg offers many places where you can relax and enjoy the beauty of nature.

One such place is the Goat Island (Ziegenwerder) in Frankfurt/Oder. This charming island in the Oder River is a true oasis of calm in the city center. It's the perfect place for a family picnic, a walk or a bike ride. The island has a children's playground, and there are walking and biking paths along the riverbank. Admission to the island is free, and access to the island is via a pedestrian bridge. Address: Herrmann-Weingärtner-Weg 1, 15230 Frankfurt (Oder).

For lovers of nature and active recreation, a visit to the Barnim Landscape Park is recommended. This vast forest area, located northeast of Berlin, offers numerous hiking and biking trails. It's a great place for a family bike trip or a picnic in the woods. You can also observe wild animals and birds in the park. Admission to the park is free, and it can be reached by bus or train from Berlin.

If you're looking for a place to relax by the water, Berlin's Lake Wannsee is worth a visit. This popular swimming area offers a sandy beach, water equipment rentals and numerous cafes. It's the perfect place for a family day on the water. Admission to the beach is charged (about €5.50 for adults, €3.50 for children), but it's worth remembering that the ticket price includes sauna admission. Getting to Wannsee is easy - S-Bahn S1 or S7 from the center of Berlin.

To conclude our tour of Brandenburg, we suggest a visit to the Botanical Garden in Potsdam. This beautiful garden, founded in 1950, is home to more than 9,000 plant species from around the world. It's a great place for an educational excursion for the whole family. Children can learn about the diversity of the plant world, while adults can relax in beautiful surroundings. The entrance ticket costs 2 euros for adults, children under 12 years enter for free. Address: Maulbeerallee 2, 14469 Potsdam.

When planning a trip to these places, there are a few things to keep in mind:

1. take comfortable shoes with you - most of these places require a lot of walking.

2. Don't forget sunscreen and headgear, especially on sunny days.

3. Take snacks and water with you, especially if you plan to make longer trips.

4. Check opening hours and ticket prices in advance - they can change depending on the season.

5. Consider buying a Berlin-Brandenburg Ticket if you plan to visit many places in the region.

Brandenburg is a region that has a lot to offer families with children. From majestic palaces and modern museums to beautiful parks and lakes, there is something for everyone. We hope our guide will help you plan an unforgettable trip and discover the charm of this fascinating region of Germany.