Copenhagen is a beautiful city with so much to see and do. Here's an ideal itinerary for 7 days in Copenhagen:

Day 1: Arrival and Exploration

• Arrive in Copenhagen and check into your hotel
• Take a stroll around the city center and explore the charming streets and architecture
• Visit the iconic Nyhavn harbor and enjoy a drink or meal at one of the many restaurants along the canal
• End the day with a visit to Tivoli Gardens, the famous amusement park in the heart of the city

Day 2: Historical Copenhagen

• Start the day with a visit to the Rosenborg Castle, a beautiful Renaissance castle with a stunning garden
• Walk to the nearby Round Tower, an observatory tower with panoramic views of the city
• Visit the National Museum of Denmark to learn about the country's history and culture
• End the day with a visit to Christiansborg Palace, the seat of the Danish government and royal family

Day 3: Art and Culture

• Start the day with a visit to the Ny Carlsberg Glyptotek, a museum with an impressive collection of art and sculptures
• Walk to the nearby Tivoli Concert Hall and catch a performance or show
• Visit the Design Museum Denmark to learn about Danish design and innovation
• End the day with a visit to the Royal Danish Theater, one of the oldest and most prestigious theaters in Europe

Day 4: Food and Drink

• Start the day with a visit to Torvehallerne, a food market with a wide variety of local and international cuisine
• Take a food tour of the city and sample traditional Danish dishes like smørrebrød and frikadeller
• Visit the Carlsberg Brewery and learn about the history of beer in Denmark
• End the day with a visit to one of the many bars and pubs in the city, and try some of the local craft beers

Day 5: Day Trip to Roskilde

• Take a day trip to the nearby town of Roskilde, home to the famous Roskilde Cathedral and Viking Ship Museum
• Explore the charming streets and shops of the town center
• End the day with a visit to one of the many local breweries or wineries in the area

Day 6: Nature and Parks

• Start the day with a visit to the Botanical Garden, a beautiful park with a wide variety of plants and flowers
• Take a bike tour of the city and explore the many parks and green spaces, including Fælledparken and Ørstedsparken
• Visit the Copenhagen Zoo and see a wide variety of animals from around the world
• End the day with a picnic in one of the city's many parks or gardens

Day 7: Shopping and Souvenirs

• Start the day with a visit to Strøget, one of the longest pedestrian shopping streets in Europe
• Visit the many shops and boutiques in the city center, including the famous Illums Bolighus department store
• Take a stroll through the trendy Nørrebro neighborhood and explore the many vintage and second-hand shops
• End the day with a visit to the Copenhagen Street Food market, and try some of the many delicious street food options from around the world.

I hope this itinerary helps you plan your trip to Copenhagen!