Places 3D

These pages render famous geographic places as live 3D scenes in the browser - the lowest shore on Earth, the highest summit, a mile-deep canyon - each with a facts panel of published figures beside the scene. Drag to orbit, scroll or pinch to zoom, and use the per-scene toggles. The 3D engine loads once (about 0.7 MB) and is cached, and everything renders on your device with WebGL; nothing about your visit is sent to a server.

• Dead Sea 3D Explorer - The Lowest Place on Earth

  Explore the Dead Sea in 3D: see how far 430 m below sea level really is, toggle the sea-level plane and salt terraces, and read the published figures.

• Mount Everest 3D Explorer - Earth's Highest Peak and the Death Zone

  Explore Mount Everest in 3D: the 8,848.86 m summit beside Lhotse and Nuptse, the death zone band above 8,000 m, and the published climbing figures.

• Grand Canyon 3D Explorer - A Mile of Rock Layers Cut by the Colorado

  Explore the Grand Canyon in 3D: stepped rock layers from Kaibab Limestone down to the 1.8-billion-year Vishnu Basement, with the Colorado River below.

• Caspian Sea 3D Explorer - Earth's Largest Inland Water Body

  Explore the Caspian Sea in 3D: the shallow north basin, the 1,025 m deep south basin, and why this landlocked giant is still called a sea.

• Lake Baikal 3D Explorer - Earth's Deepest Freshwater Lake

  Explore Lake Baikal in 3D: the 1,642 m deep central basin, the mountain-walled rift valley, and the famous clear winter ice cover.

• Mariana Trench 3D Explorer - The Deepest Point on Earth

  Explore the Mariana Trench in 3D: a narrow ocean-floor slot cut down to about 10,935 m at Challenger Deep, the deepest point on Earth.

• Black Sea 3D Explorer - the World's Largest Anoxic Basin

  Explore the Black Sea in 3D: a thin oxygen-rich surface layer over a vast anoxic deep zone reaching 2,212 m, and the northwest shelf where it stays shallow.

• Lake Victoria 3D Explorer - Africa's Vast, Shallow Inland Sea

  Explore Lake Victoria in 3D: a huge, saucer-shallow basin only about 84 m deep at its deepest, the source of the White Nile at Jinja, Uganda.

What these explorers show

Each place gets one scene built around the number that makes it famous: the Dead Sea explorer draws the sea-level plane 430 m above the water so the depression is visible; the Everest explorer bands the death zone above 8,000 m; the Grand Canyon explorer stacks the seven major rock formations down to rock 1.8 billion years old. The figures in every panel come from published survey and encyclopedic sources, and each page states plainly that the geometry is a schematic teaching cue, not survey terrain.

The three extremes, side by side

The first three places were picked because together they bracket the vertical range of the continents. The Dead Sea shore, about 430 m below sea level, is the lowest land a person can stand on; the summit of Everest, 8,848.86 m above sea level, is the highest; and the Grand Canyon cuts the deepest widely-known cross-section through the rock record in between - about 1.86 km from rim to river. Stack them on one axis and the whole span from lowest shore to highest summit is a little over 9.2 vertical kilometres, which is less than the cruising altitude of an airliner. Seeing the three side by side makes that compression tangible in a way flat numbers rarely do.

How the figures are chosen

Every number in a facts panel traces to a published survey or an encyclopedic consensus value: the 2020 China-Nepal joint survey for Everest's 8,848.86 m, National Park Service and USGS figures for the Grand Canyon's length, width, and depth, and the widely-reported modern shoreline elevation and salinity for the Dead Sea. Where a value drifts over time - the Dead Sea drops about a metre a year, Everest rises a few millimetres - the panel says so instead of freezing a stale number. When a figure is genuinely disputed or measured differently by different agencies, the panels prefer the value the responsible agency publishes and rounds honestly with "about".

What "schematic" means here

These scenes are teaching models, not terrain scans. The Everest massif is a procedurally shaped ridge, not photogrammetry; the canyon walls are stepped slabs whose thicknesses are exaggerated so each formation stays readable at a glance; the Dead Sea basin compresses hundreds of kilometres of rift valley into one orbitable diorama. Vertical scales are chosen per scene so the signature comparison stays visible - the sea-level plane above the Dead Sea, the red band above 8,000 m - and every page repeats this caveat next to the figures so a reader never mistakes the geometry for survey data. If you need measurable terrain, the panel figures give you the real numbers to take away.

How to use them

Open a place, drag to orbit the camera, scroll or pinch to zoom, and use the toggles under the scene to switch the teaching overlays on and off. Fullscreen works on every page, and your toggle choices are remembered in your browser between visits. On phones and low-core devices the scenes automatically drop antialiasing and polygon counts so the orbit stays smooth. The 3D engine is the same vendored three.js module the Space 3D pages use, so if you have visited either family before, the engine is already cached and a new place opens with no download at all.

Where this family is going

The seed batch covers three vertical extremes, and the family grows from a curated list of famous seas and salt lakes, freshwater giants, trenches and canyons, forests, reefs and bays, caves, mountains, deserts, plateaus, and rivers. Each new place ships the same way: one scene, one signature figure, one facts panel of published values, and the same orbit-and-toggle controls - so the family stays consistent as it grows. If a place you expected is missing, it is most likely queued rather than skipped.

Privacy and requirements

Everything renders on your device with WebGL through the vendored three.js engine - there is no account, no upload, and nothing about your visit is sent to a server by these pages. The engine loads once (about 0.7 MB) and is cached by the browser. A device or browser with WebGL disabled still gets the full facts panel and the written description; only the orbitable scene needs the GPU. Toggle preferences are stored locally in your browser and never leave the device.