This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

Like something out of a pulp adventure, this abandoned plane wreck is slowly being retaken by the Caribbean jungle.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

3,000 market stands in five former Zeppelin hangars.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Ever-growing collection of devils in art.

Things aren't quite what they seem at this mind-bending museum.

Hoodoos, naturally eroded land formations, stand 20 feet tall in the Canadian badlands.

As if T-rex wasn't big enough, this Canadian monument is four times larger than the real thing.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

Not for the faint of heart, this long pedestrian bridge rewards those who brave the wobbly walk with a beautiful view.

A unique collection of diving equipment spanning antiquity to the present day.

A rescue facility that caters specifically to wolf-dog hybrids, and educates about these unique animals.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Flames have been burning within this mountain for more than 2,500 years.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

There’s a hidden military meme engraved on the World War II Memorial.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A hugely vast Irish landscape of barren rock that stretches for miles.

A tiny, remote island packed with wonders both natural and geeky.