List of Greek and Roman architectural records

This is the list of ancient architectural records consists of record-making architectural achievements of the Greco-Roman world from c. 800 BC to 600 AD.

Ratio of clear span against rise, arch rib and pier thickness:

Pont du Gard in France, the tallest Roman aqueduct bridge (47.4 m)

Relief of the monumental Trajan's Bridge across the Danube , record-holder in various categories, such as the largest bridge by span and the longest segmental arch bridge.

Dimensions of a typical segmented arch of the Roman Bridge at Limyra , Turkey

The semi-circular arches of the Alcántara Bridge can support loads of up to 52 t.

Pompey's Pillar , the highest free-standing monolithic ancient Corinthian column (26.85 m)

The dam at Cornalvo , Spain, is one of the tallest Roman dams still in use (28 m).

Interior of the Pantheon dome

The Long Walls and the Phaleric Wall connecting landlocked Athens with its port Peiraeus (5th c. BC)

Reconstructed Roman treadwheel crane

Stone of the Pregnant Woman , the second largest monolith quarried, weighs c. 1,000 t

Parthenon in Athens

Entrance to the 750 m long Crypta Neapolitana , one of the largest Roman road tunnels

The longest straight alignment was a c. 80 km long section of the Limes in modern-day Germany. It ran between modern Walldürn and Lorch in the angle between Rhine and Danube, protecting the borders of Roman Germania .