Did you know they used a kind of concrete there developed with ashes that is much stronger than modern concrete?

Hecho para durar otros 10.000 años. Hoy los edificios duran menos de 100 años

As seawater percolated within the tiny cracks in the Roman concrete, it reacted with phillipsite naturally found in the volcanic rock and created aluminous tobermorite crystals. The result is a candidate for "the most durable building material in human history". In contrast, modern concrete exposed to saltwater deteriorates within decades. https://en.wikipedia.org/wiki/Roman_concrete

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The pantheon is amazing.

Still the largest concrete dome ever made.

Went there last year.

Photos can’t show how big it feels and how the high ceilings influence your perspective on state vs individuals.

However, I must say this kind of buildings exist to project a longer shadow of the state.

For empire level constructions, I value more beautiful bridges, big dams and extensive roads, especially far away from the capital.