A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

A 20-meter (65-foot) robot towers over Tokyo Bay.

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.

This abandoned, spaceship-like building is home to a museum so unpopular that it has been put on hiatus for over two decades.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

A musical instrument played by the sea.

A huge musical instrument played by the ocean.

A collection of sculptures that explore what's at stake when nature is thrown out of balance.

A trash dump made beautiful by nature's power.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

Much of what constituted mid-century Liverpool now litters a beach outside of town.

Seven ceramic sculptures are scattered around this California college campus.

This museum boasts the ninth-largest collection of insects in North America.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

Kayak out to a floating restroom.

This giant wooden treehouse within a sprawling garden has its own eatery.

Along a rail-biking route, giant insects house a two-story restaurant.

A medieval village holds a very modern hotel.

This whimsical stacked cabin looks like something out of a children's book.

Four-story concrete hotel never opened to customers.

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

This chilly Canadian hotel has a four-month lifespan due to the unusual material it's made of.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

This fantastical icy castle is built anew every winter.