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

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A vast Communist-era exhibition space in the Bulgarian capital.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

A striking symbol of the Bulgarian capital.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat.

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

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

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

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

An ancient knight and a symbol of the city's freedom.

Where the lovelorn find a home for their sentimental keepsakes.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

The Titanic sails again in one Scotland man's backyard.

Eighty million natural history specimens call this gargantuan museum home.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.