Italy, Tuscany, Florence, Basilica di Santa Croce, Tomb of the astronomer Galileo Galilei.

Uzbekistan, Samarkand, Ulugh Beg, also known as Mirzo Ulugbek, statue, at Ulugh Beg Observatory.

Uzbekistan, Samarkand, Rumi, Ulugh Beg, Jamshed, Khavofi and Kushchi statue, Ulugh Beg Madrasah, Registan Square.

Poland, Warsaw, Statue of the astronomer Nicolaus Copernicus outside the Polish Academy of Sciences.

Valley of the Nobles. Tomb of Nakht the scribe and astronomer of Tuthmosis IV. Detail of interior wall painting depicting birds and animals.

ITALY Tuscany Florence Statue of the physicist, mathematician, astronomer and philosopher Galileo Galilei in the Vasari Corridor outside the Uffizi

Italy, Lazio, Rome, Colosseum, cross section view of the Colosseum in warm light.

Italy, Lazio, Rome, Colosseum, Upper level arches of the Colosseum with people looking from viewpoint.

Italy, Lazio, Rome, Colosseum, classic view of the Colosseum with blue sky & light cloud.

Italy, Lazio, Rome, Colosseum, view of the Colosseum from the Palatine.

Italy, Lazio, Rome, Colosseum, cross section of the Colosseum with buildings of Monti area in distance.

Italy, Lazio, Rome, Colosseum, cross section of the Colosseum showing viewpoints and different levels.

Italy, Lazio, Rome, Colosseum, view of Colosseum interior showing arches & different levels with people at viewpoints.

Italy, Lazio, Rome, Colosseum, girl running past puddle with reflection of the Colosseum.

Italy, Lazio, Rome, Colosseum, view of Colosseum with brick wall.

Italy, Lazio, Rome, The Arch of Constantine with the Coliseum behind.

Italy, Lazio, Rome, The Arch of Constantine with the Coliseum behind.

Italy, Lazio, Rome, The Arch of Constantine with the Coliseum behind.