One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

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

Quite simply the largest tree in the world (by volume).

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Tubing through a cave lit with glowworms is a magical underground experience.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Private collection of art inspired by cabinets of curiosity.

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

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Started as a kitchen garden, now the second largest botanical garden in the world.

Towering basalt columns, a creation of fire and ice.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

An Australian lake whose pink hue defies scientific explanation.

One man's homage to the sun continues to grow like a glass fractal.

America's most famous piece of self-built architecture.

A layered tribute to the work of mosaicist Isaiah Zagar.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A 16th-century horror show built in a lovely Italian garden.

These fantastically named natural pools look like something out of a Scottish myth.