Cannon in historic castle in medieval village of Marvao, Portalegre district, Alto Alentejo, Portugal, Europe

The Roman period Odeon building, Apollonia Archaeological Park, Pojan, Albania, Europe

The Roman period water storage cistern building, Apollonia Archaeological Park, Pojan, Albania, Europe

Architectural detail of the Acropolis Museum, an archaeological museum located in the historic center of Athens, Greece, Europe

Owl, symbol of Athens, at display at the Acropolis Museum, an archaeological museum located in the historic center of Athens, Greece, Europe

Anubis, Tomb of Nefertari, Valley of the Queens, UNESCO World Heritage Site, Thebes, Egypt, North Africa, Africa

Remains of a wooden boat from 7th century, Punjulharjo Village near Lasem, Java island, Indonesia, Southeast Asia, Asia

Columns surrounding the Forum, archaeological site of Pompeii, UNESCO World Heritage Site, province of Naples, Campania, Italy, Europe

The tiny 18th-century Stavropoleos Church is one of the most beautiful religious monuments in the capital of Romania. Tucked away between taller buildings in Bucharest´s Old Town, the monument was originally part of Stavropoleos Monastery

Wall Relief of Egyptian Pharaoh, Tomb of Rameses III, KV11, Valley of the Kings, Ancient Thebes, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

Ancient ruins of the Archaeological Site of Olympia, UNESCO World Heritage Site, Peloponnese, Greece, Europe

Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Fountain, archaeological site of Pompeii, UNESCO World Heritage Site, province of Naples, Campania, Italy, Europe

Tomb in the Pre-Aksumite settlement of Qohaito (Koloe), Eritrea, Africa

Image of Nefertari on left and God Thoth, Paintings and Relief, Tomb of Nefertari, QV66, Valley of the Queens, Ancient Thebes, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Transparent Car (The Ghost Car), built in America by General Motors for the 1939 New York World's Fair, National Museum of Qatar, Doha, Qatar, Middle East

Chinchorro Mummies site, UNESCO World Heritage Site, Camarones Valley, northern Atacama desert, Chile, South America

Roman town of Herculaneum, UNESCO World Heritage Site, Campania, Italy, Europe

Roman town of Herculaneum, UNESCO World Heritage Site, Campania, Italy, Europe

Statue of Queen Nefetari, Karnak Temple Complex, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

Image of Goddess Maat, Paintings and Relief, Tomb of Nefertari, QV66, Valley of the Queens, Ancient Thebes, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

Carved marble Roman portrait heads of four men, Archaeology Museum, Apollonia Archaeological Park, Albania, Europe

Archaeologists at work, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Surveyor at work, Temple of Panels (Templo de los Tableros Esculpidos), Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America