Stone Bridge — 3D City-Guide Landing Page

A complete, scrollable city-guide landing page with the 3D built into it: an old stone arch bridge over a turquoise river that you fly under as you scroll. It is one self-contained HTML file, built entirely in code, with no image files, no 3D models and no build step. Under the hood: Three.js, bridge extruded from a side profile with a generated masonry texture, low-poly cliffs, houses and trees, flowing river shader, scroll-driven camera path. What a visitor can do: move to look around, scroll to glide under the arch, 4 presets (Summer, Golden, Winter, Night). Best for: City and regional tourism, tour operators, heritage sites, hotels and guesthouses. Three.js loads from a CDN through an import map and the type (Cormorant Garamond, Inter) from Google Fonts, so there is still nothing to install. The page is real HTML — a navigation bar, a full-height hero, content sections, a call to action and a footer — so the brand name, headlines and cards are edited as plain text. Colours, counts and speeds sit in a CONFIG block and a PRESETS array, colour themes restyle the page and the 3D together from a small swatch pill, ?embed hides the pill and ?tour scrolls the page by itself.