A crumbling cliffside ruin hidden in the woods.

This patch of old-growth forest is home to Canada's gnarliest tree.

Saved by a logger, this Douglas fir is one of the last great old-growth trees in Canada.

This quirky countryside store is known for the goats that hang out and eat the grass on its roof.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

A plaque on Canada's Hornby Island commemorates a fantastical creature from a fictional universe.

A Canadian port town is oddly home to two of the largest tree burls in the world.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

Tucked away inside this concrete building is a church and its grand display of brutalist architecture.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

Suffocating dogs was a common spectacle in the fumes of this noxious cave.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

The burial place of an obscure North African saint was turned into a macabre body preservation factory for the 17th-century Neapolitan elite.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

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

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

A little-visited waterfall in an otherworldly landscape.

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

Iceland: home to volcanoes, waterfalls and, apparently, Santa?