In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

A former military outpost of Ivan the Terrible, the 16th-century church contains some of the rarest examples of Eastern Orthodox mural paintings.

Explore 400,000 years of humans' "battle against darkness" in this offbeat but thorough lamp museum.

The odd depiction of the Virgin Mary and baby Jesus is rooted in the Catholic Church's eradication of Catharism.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

The secret medieval communication system will whisk your words above the noise of the crowd.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

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

An alien church provides much needed silence in the midst of a Finland shopping center.

A giant gorilla made of used car tires used to sit sentinel over a Helsinki college campus.

Legend has this precariously placed rock was placed by giants. Science has another explanation.

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