The Origin of On the Origin of Species.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

This hidden green space is the city's second largest conservatory.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

Walk in the footsteps of the gods and straddle two tectonic plates.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

This elegant arc of a waterfall marks a religious turning point.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created with the discharge from a geothermal energy plant.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

This observatory within Europe's first dark sky park offers stunning views of the night sky.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

Ship-sized kinetic sculptural fantasy.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

This 1920s Dutch barge is now a floating bookstore.