Huly Hill is a 30 metre diameter earthen burial mound, surrounded by a modern retaining wall. At its highest it is around 3 metres. The mound was excavated in 1830 and a dagger or spearhead was found along with some cremated bones. Around the mound are three standing stones; two are around 2 metres tall, and the third is probably broken and stands 1.2m tall. The cairn and the stones were in use at different times. The monument may date from around 2500 BCE.
The remains of an Iron Age chariot burial were found near mound. The chariot was the first of its kind to be found in Scotland and shows Iron Age Scotland in direct contact with the European Continent. The Newbridge chariot was buried intact, a method consistent with the burial practices of Continental Europe rather than Yorkshire.
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.