Copenhagen keeps proving how a city built for people – and bikes – stays ahead. The harbor is swimmable, the sidewalks lively and 2025 brings more connective tissue: the M4 Sydhavn metro extension that opened with five new stations now knits Enghave Brygge and Sydhavnen to the city core in minutes, reinforcing the capital’s #1 Biking and #2 Walkability pedigree globally. Urban investment is everywhere, highlighted by the groundbreakings at Jernbanebyen, 150+ acres of former rail yards just west of the central station that will unlock a long-planned mixed-use district sized for families and start-ups alike. Green growth is also prioritized, with Fælledby, the 45-acre timber-forward neighborhood northwest of Ørestad, continuing its build-out with new public spaces while preserving about 40% as natural habitat. And out in the harbor, Lynetteholm’s 680-acre storm-surge island hit a 2025 milestone as its stone embankments rose from the water – long-horizon climate protection with future transit and housing baked in. Tourism and connectivity are surging. Copenhagen Airport handled 29.9 million passengers last year, and July 2025 set a new monthly record, momentum that keeps the city easy to reach and easier to love. The 8.1-mile Harbour Circle ties those arrivals straight into waterfront parks, bridges and boardwalks.