A special dish from the 1970s: Bananas enrobed in pickled herring and parsley. I will pass.
The massive Roman aqueduct built in Segovia, Spain, by the Roman Emperor Trajan (AD 98-117).
One of the best-preserved works of Roman engineering, the structure was built from approximately 24,000 blocks of dark-colored Guadarrama granite without the use of mortar. The above ground portion is 2,388 feet long. And it consists of approximately 165 arches that are over 30 feet tall.
They built structures that lasted over 2,000 years and our modern infrastructure only lasts a 100 years before it has to be replaced.