The South African dialect's complex history is immortalized in stone, in one of the world's only monuments dedicated to a language.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

A silly medieval mural preserved on the side of a Viennese house.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

A painfully obvious spy house sits right across the street from the Russian Embassy.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

Granny Smiths and Fujis can both be traced back to Kazakhstan, where apples still grow wild.

A magical work of architecture where a wind turbine enables monks to levitate.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Giant sand sculptures of famous people and places are on display near the Tottori sand dunes.

An enigmatic modern marker left next to a historic Roman site.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

This sculpture is an instrument played by the swell of the seas.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

This nine-story building can be played like an instrument.

A large instrument played by the wind.

A Seussian sculpture made of brass instruments.

When the rain falls, this drain system turns into a musical instrument.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A musical instrument played by the sea.

Church organ in the Philippines constructed out of bamboo.

Resonating tubes make music from highway overpass.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.