What is the prettiest big city?

Determining the "prettiest" big city in Europe is highly subjective and can vary depending on personal preferences, architectural styles, natural surroundings, and cultural experiences. However, here are some big European cities that are often praised for their beauty and charm:

1. Paris, France: Often called the "City of Light," Paris is known for its iconic landmarks like the Eiffel Tower, Notre-Dame Cathedral, and the Louvre. The city's wide boulevards, parks, and elegant architecture contribute to its reputation as one of the prettiest cities in Europe.
2. Venice, Italy: Built on a network of canals, Venice is a city of unique and stunning beauty. Its romantic canals, historic buildings, and vibrant atmosphere make it a top contender.
3. Prague, Czech Republic: With its picturesque old town, historic bridges, and hilltop castle, Prague's fairy-tale-like architecture and romantic ambiance make it one of Europe's most beautiful cities.
4. Barcelona, Spain: Known for its innovative architecture by Antoni Gaudí, Barcelona boasts iconic landmarks like the Sagrada Família, Park Güell, and Casa Batlló. The city's vibrant street life, beaches, and Mediterranean charm add to its appeal.
5. Vienna, Austria: The imperial palaces, grand boulevards, and well-preserved historic districts give Vienna an air of elegance and beauty. The city's classical music heritage and lush parks further contribute to its charm.
6. Dubrovnik, Croatia: Often called the "Pearl of the Adriatic," Dubrovnik is known for its well-preserved medieval walls, historic architecture, and stunning coastal views.
7. Edinburgh, Scotland: This city combines striking natural beauty with historic architecture. The medieval Old Town and the Georgian New Town, along with the dramatic backdrop of Arthur's Seat, create a picturesque setting.
8. Florence, Italy: Florence is renowned for its Renaissance art and architecture. The city's historic center, with landmarks like the Florence Cathedral and the Uffizi Gallery, is a testament to its beauty.
9. Amsterdam, Netherlands: Known for its picturesque canals, historic houses, and vibrant neighborhoods, Amsterdam's unique urban landscape and cultural richness contribute to its beauty.
10. Budapest, Hungary: Often referred to as the "Paris of the East," Budapest is a city of stunning architecture, including the Buda Castle, Hungarian Parliament Building, and the Chain Bridge, which span the Danube River.
11. Stockholm, Sweden: Spread across 14 islands, Stockholm offers a blend of waterways, parks, and historic districts. The city's well-preserved medieval Gamla Stan and modern Scandinavian design make it a visually appealing destination.
12. Lisbon, Portugal: With its colorful buildings, historic neighborhoods, and scenic views of the Tagus River, Lisbon exudes a vibrant and inviting atmosphere.

These big European cities offer a combination of historic charm, architectural beauty, cultural richness, and natural surroundings.