A striking symbol of the Bulgarian capital.

This historic black and white monastery is one of Bulgaria's architectural jewels.

This tiny Bulgarian town offers a stunning location in the mountains and a storied history.

17th century palace once a meeting place for politicians.

This museum offers a journey back to the Belle Epoque era of Romania.

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

A collection of items from a way of life that no longer exists.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

A celebration of all things tacky, garish, and bizarrely creative in the Romanian capital.

This snug medieval lane is one of the narrowest streets in the world.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

This once-derelict building is now one of the most beautiful bookstores in the world.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Former villa and estate of James Deering developed to preserve native tropical forests.

Over 120,000 curious objects that have shaped our modern world.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.