Which building or structure in Rome dominated the citys land

Which building or structure in Rome dominated the city’s landscape?

Solution

The colosseum is the largest amphitheatre built by vespasian and titus emperors which holds 50000 to 80000 spectators. It is elliptical free standing structure of 189m long and 156 m wide with base area of 6 acres. The height of wall is 48 m. Most of the buildinh is damaged due to earthquakes.