Copenhagen:

• Modern Architecture: The Black Diamond (Royal Danish Library), and 8Tallet.
• Classic Danish Design: Explore the Design Museum Denmark and shop for Danish furniture.
• Public Spaces: Superkilen Park and its international design elements.

Oslo:

• Iconic Structures: Oslo Opera House with its stunning sloped roof, Astrup Fearnley Museum, and Barcode Project.
• Sustainable Architecture: Highlight how Oslo focuses on eco-friendly building designs.
• Natural Integration: Discuss how Oslo’s buildings blend with the surrounding fjords and forests.

Stockholm:

• Royal Architecture: Stockholm’s Royal Palace and Drottningholm Palace (UNESCO World Heritage Site).
• Modern Marvels: Ericsson Globe, and the contemporary photography museum, Fotografiska.
• Urban Planning: Stockholm's green urban spaces and eco-friendly buildings like Hammarby Sjöstad, an innovative sustainable district.