An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Notorious artist squat renovated into legal studios.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Singapore's landscaping project is home to 18 incredible Supertrees.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Visitors can swim with vicious predators in Crocosaurus Cove's plastic daredevil enclosure.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

A clear example of the process of erosion in action.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

Occult books, tarot, oddities.

A Catholicism-themed restaurant where sacrilege is on the menu.

This 700-year-old street food market features baby octopus and soy donuts.

A chapel on a volcanic core, marking the end of a successful journey.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

Museum of science fiction, utopias, and extraordinary journeys of the mind.

The largest underground church in Europe.

Historic medieval fortified city in southwest France.