The first frost at Popradské Pleso - High Tatras

Copco Reservoir Dam [1]

CW Cave - pahoehoe floor

Chippy Spur (aerial)

Lakehead (aerial)

Jynkänlahti pier in deep twilight

Timber Cave [1]

Frehm Cave entrance

Locomotive Mountain Trail tarn [2]

Inside a spatter cone [2]

Vault Cave [1]

CW Cave - discovery entrance

March 22 2026 Barnaul Russia winter panorama with BARNAUL sign on hill Ob River and bridge snowy landscape clear daytime cityscape

360-degree panoramic winter view of the Cathedral of Christ the Saviour, Patriarch Bridge, Red October factory, and Peter the Great monument from Prechistenskaya Embankment in Moscow. Snowy cityscape, frosty winter atmosphere.

Augstmatthorn hiking trail in Switzerland

Stutur Volcano, Fjallabak Nature Reserve, Iceland

Frostastaðavatn, Fjallabak Nature Reserve, Iceland

Lovere - Civic Tower (interior)

Lovere - Civic Tower2

Autumn colours at Llyn Padarn

Parc Del Laberint D Horta

Kyrgyzstan 2023. Alpine lake Ala-Kol. 2

Dieslingsee (1818 m)

1000 Islands Parkway at St. Lawrence River near Mallorytown, Ontario