This architecturally eclectic early-20th century mosque was built as a place of worship for the Islamic followers of a Jewish messiah.

An abandoned Byzantine fortress and notorious prison.

This beautiful medieval Serbian monastery is home to frescoes, peculiar sculptures, and historical curiosities.

A Roman monument to their own civil engineering prowess.

This 15th-century Serbian Orthodox monastery also contained a school for illuminating manuscripts.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

One of the most controversial statues in Romania is an emperor with no clothes.

The most impressive example of contemporary Romanian architecture in wood

This fortress-like monastery is covered with intricate frescoes.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

Visit an imposing 13th-century Transylvanian citadel lurking not far from the region's more heavily touristed attractions.

This metro station doubles as an unintentional paleontology museum.

Religious structure known for its sculpted details.

17th century palace once a meeting place for politicians.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

This 11th-century structure is one of the oldest churches in Romania.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

Packed to the ceiling with antique taxidermy and hunting arms.

Climbing to the top of the cathedral's bell tower offers sweeping views of these medieval ruins.

A spooky spot along the road where things mysteriously seem to move uphill by themselves.

Romania's triumphal arch looks out over Bucharest.

A medieval church built up to defend its village.

A Romanian church built from one single oak.