In the Hugging Tree Forest, lingonberry marshmallows, hot chocolates, and the best campfire lattes north of the Arctic Circle come to you.

Crawling into this primordial cave may feel disconcertingly familiar.

Villas that once served as playgrounds for the rich now fall away in decay.

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

A collection of collections ranging from dentistry to minerals.

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

This lake-bound geographical marker sits at the point where three European countries intersect.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

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

Rent out a glass igloo to watch the Northern Lights like you live in the future.

A diminutive, thousand-year-old church believed to be the smallest in Ireland.

A unique bridge with an equally unique view.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

The longest navigable underground river in the United States is home to countless blind and albino animals.

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

This former farm In northern Iceland is now a museum, where visitors can tour beautifully-preserved turf houses.

A woodland close to England's "most haunted village" has been the site of many unexplained events and deaths.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

The remains of an ancient bathhouse sit inside this aptly-named pub.

Dine like an American revolutionary at Colonial Williamsburg.

A small house sits between two huge rocks, with its back to the sea.

This standing stone has a unique backdrop thanks to some of the United Kingdom's best-rated beaches.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."