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

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

Dedicated to the outnumbered Finnish forces who pushed back Soviet forces during the conflict.

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

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

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

This church also serves as a lighthouse complete with a beacon.

Hidden deep in a forest is this geological wonder carved by glaciers.

Pigduck of Turku.

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

One man's journey to return a stone to its point of origin after 200,000 years.

One of the youngest whisky distilleries in Scotland may also be the country’s oldest.

This 19th-century aqueduct provides insights into how water was supplied to Victoria on the island of Gozo before modern plumbing.

Discover the car that once belonged to the King of Nepal in a former Soviet-era taxi park.

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

Originally built by Japanese fishermen, this historic neighborhood has withstood the test of time.

One of Jeff Koons’s largest sculptures and his first commemorative work.

Visiting this grotto is symbolic of a spiritual journey into Nirvana.

This grand temple complex from the Old Silla era of Korea is home to a stone pagoda that was build in the 7th century.

This ancient Corinthian helmet is South Korea’s only national treasure of Western origin.

All that remains of an ancient royal palace is a water channel that was used for drinking games.

This tomb's name derives from a famous painting of a white horse found inside.

An early Korean refrigerator.

This 317-ton walkable art installation is an homage to Korea's "City of Steel."