A delightful museum entirely dedicated to the tiny homes of dolls.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The Swedish flag over this small naval fort signals that the nation is at peace.

Stockholm's narrowest alley is barely over two feet wide.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

A lush oasis full of vibrant plants and striking geometric displays.

Crafted from ocean litter, this sculpture highlights the ills of overconsumption.

Pompeii's less famous neighbor is still revealing her secrets.

Well-preserved, still-functional sliding wood doors from Ancient Rome can be found in this Vesuvius-stricken house.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

One of the shortest streets in York has an especially odd name.

Follow the original medieval paths that wind through this intriguing section of the city.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

The last Victorian market in Belfast.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

One of the first monuments dedicated to the accomplishments of the great Vice Admiral, Horatio Nelson.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The largest terracotta fountain in the world, built to commemorate Britain’s Victorian achievements.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A medieval military street hidden beneath a charming French fishing village.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

An empty bookshelf commemorates the books which were lost during the infamous event