Abstract

Superstructure of Westfield World Trade Center

Stained glass in Jefferson Market Library

A geometric glass structure with triangular panels and dark metal framework.

Mausoleum at the Italian Cemetery

Exposed strata at Devil's Slide

A collection of rusted metal rods casts long shadows on dark sand.

Rusted ruins on Sharp Park Beach

A rocky surface features a distinctive pattern of grooves and ridges that run diagonally across it.

Farnsworth Canyon

A close-up of sandstone features diagonal grooves.

Farnsworth Canyon

A rock face displays diagonal bands of brown and white sediment.

Farnsworth Canyon

A rock formation features small tufts of yellow grass growing in its cracks.

White travertine deposit around Grand Geyser, Yellowstone National Park

Grand Prismatic Spring at Yellowstone National Park

A ceiling features a light blue background with ornate gold and brown trim, adorned with decorative shapes along the edges.

Ceiling at the entrance to Saint Vincent de Paul Roman Catholic Church

Suspenders on the San Francisco–Oakland Bay Bridge

Light pole on the east span of the San Francisco–Oakland Bay Bridge

Space Shuttle Independence mounted on NASA 905 carrier at Space Center Houston

A white sand dune under a clear blue sky.

Sand dune at White Sands National Park

A flat, barren landscape of white sand with gentle undulations and a few small indentations.

Sand dune at White Sands National Park

Còpia de submarí Ictíneo I al Museu Marítim

An orange brick wall features a pattern of cutouts that cast shadows on its surface.

Mudéjar brickwork at Casa Árabe, Madrid, Comunidad de Madrid, Spain

A rocky surface with an oval shape on the ground and a shadow of a person in front of it.

Self-silhouette at Colorado River Overlook, Canyonlands National Park

Steel smithing tools at East Ely Railroad Depot Museum

A twisted brown root lies on a white rock surface, possibly quartz or marble.

Exposed root on Crystal Peak

A tall stone building with a curved shadow on its side under a clear blue sky with the moon visible above.

Cathedral of Saint Mary of the Assumption and the moon

A wooden door with metal studs and bolts, partially shaded by sunlight filtering through slats above it.

Wooden door at the Japanese Tea Garden

A wooden panel with evenly spaced, small round protrusions, illuminated by shadows cast by slats above it.

Wooden door at the Japanese Tea Garden

A palm tree rises above a shrubbery-covered hillside against an orange sky.

Orange Sky in San Francisco, California, USA, September 9, 2020

A skyscraper with a glass facade and numerous windows rises into an overcast sky.

Perspective view of 555 California Street building

A close-up view of a bridge's suspension cables against a clear blue sky.

Looking up through suspension cables of Golden Gate Bridge

A metal fence with shadows of leaves on a brick wall.

Fence connecting to a wall at Highbridge Park in Manhattan

Two tall buildings are visible from below, with one building on the left having a dark facade and the other on the right featuring a light-colored facade.

Black & white buildings in Manhattan Financial District

A circular design features a central black floral element surrounded by a labyrinthine pattern in shades of orange and yellow.

Ceiling detail at Grauman's Chinese Theatre

A weathered red rock formation with parallel cracks and crevices.

Sandstone formations in Valley of Fire State Park