White observatory on a hill

3405 × 2270

astronomical observatory complex

1708 × 1139

Astronomical observatories on a mountain

1600 × 1063

Star trails over mountain landscape

1920 × 1200

Star trails over mountain landscape

1600 × 1069

Sunset over a city with a dome

800 × 602

snowy mountain with clouds

1024 × 768

Crescent moon at sunset

2560 × 1600

Silhouette of a city at sunset

5184 × 3456

Solar eclipse partially obscured

990 × 633

child with sword on mountain

1680 × 1050

Snow-capped mountain peak

1440 × 900

Snowy mountain peak at dawn

1024 × 768

Helicopter in flight over clouds

1026 × 1481

child on mountain with sword

1440 × 900

Jet flying over mountain peak

1600 × 1000

City with mountain and sea view

2048 × 1365

flying spaceship in sky

1600 × 1200

floating devices in stormy sky

1920 × 1080

Zeppelin at sunset

2560 × 1600