Trier Saint Peter's Cathedral - 4 Things to Know Before Visiting

Thought to be buiilt between 1230 and 1247, this is the earliest Gothic church in Germany. Several of the churches Gothic pillars stands on top of ancient Roman columns. None of the Roman structures are visible above the surface now but there are excavations under the church that are not open to the public.

The Aula Palatina at Trier, Germany is a Roman palace basilica that was commissioned by the emperor Constantine I at the beginning of the 4th century. The Aula Palatina was built as a part of the palace complex. Originally it was not a free standing building, but had other smaller buildings attached to it.

The Porta Nigra is a large Roman city gate in Trier, Germany. It is today the largest Roman city gate north of the Alps. It was built in grey sandstone after 170 AD. The original gate consisted of two four-storeyed towers, projecting as near semicircles on the outer side. For unknown reasons, the construction of the gate remained unfinished. In Roman times, the Porta Nigra was part of a system of four city gates, one of which stood at each side of the roughly rectangular Roman city.

An archeological museum with collection stretching for 200,000 years- from prehistoric through Roman Period, and middle ages to the the Baroque era. Much importance is given to the Roman past of Trier, Germany's olderst city. A large scale modal of Trier during Roman era is one of the notable artefact here.

The Karl Marx House museum is a writer's house museum in Trier, Rhineland-Palatinate, Germany. Karl Marx, the father of modern socialism and communism, was born in the house in 1818. It is now a museum about Karl Marx's life and writings as well as the history of communism. This museum is extremely popular with tourists from China.

Kaiserthermen, or The Trier Imperial Baths are a large Roman bath complex in Trier, Germany constructed in the 4th century AD. This large complex consists of an impressive outer walls, and subterranean passageways with furnaces for heating.