A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

A hidden three-foot-wide house separates these two regal churches.

The grandest stage for the world's foremost masters of invisible instruments.

An incredibly durable timepiece glows beneath shoppers' feet.

These Finnish rapids have been attracting tourists for over a hundred years and are now released with the push of a button.

No matter how many times this community-run sauna gets destroyed, it always rises from the ashes.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

A subterranean house of worship carved right out of the bedrock.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

Finland's northernmost zoo is home to the country's only polar bears.

Founded as a refugee camp, now a popular tourist spot.

Hidden behind mountains in Morocco, a remote town hides a thriving surfing community.

The world's oldest bookshop still in operation.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.

The reconstruction of this prominent building fulfilled a long-written command.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

This fantastical icy castle is built anew every winter.

A tribute to one of Bombay's former governors that has withstood the test of time.