Related to astronomical observatory structures

Malbork Castle on the Nogat River

1920 × 1200

Pena Palace in Sintra, Portugal

1600 × 1000

Giant Buddha statue in Hong Kong

1600 × 1200

Pena Palace in Sintra

1920 × 1200

Great Wall of China

2016 × 1512

Trevi Fountain in Rome

1600 × 1000

ancient stone amphitheater

1920 × 1080

Dark stone corridor with arches

1680 × 1050

Ancient stone faces at Angkor Wat

1600 × 1063

Ancient stone faces at Angkor Wat

2560 × 1700

Roman amphitheater at sunset

2560 × 1600

Aerial view of a historic fortress

911 × 700

Ancient ruins with poppies

1600 × 1200

Egyptian temple column with hieroglyphs

4032 × 3024

ornate domes of a palace

1600 × 1200

ruins of a stone abbey

1944 × 2592

Angkor Wat temple complex

3008 × 2000

Great Wall of China

2948 × 1944

ancient church on a hill

1600 × 1200

Himeji Castle in Japan

3072 × 2304

Osaka Castle in Japan

2560 × 1600

Historic pavilion in a garden

2048 × 1536

Roman Forum ruins

4652 × 1342

Colosseum in Rome

1920 × 1200