A Turkish ghost town abandoned in a population exchange with Greece.

An abused and forgotten metropolis, abandoned for centuries.

This famous city eluded concrete detection until the early 2000's.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

A sculpture of a salmon swimming through a brick building.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The building where Mary, Queen of Scots was said to have bathed in white wine.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

A wooden street sign is the last remnant of this 400-year-old alleyway.

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

Sweden's oldest animated sign is still lighting up the skyline today.

Stockholm's tiniest statue is of a small boy looking at the Moon.

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.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

The iconic castle that withstood a magnitude 6.2 earthquake has become a symbol of resilience.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.