The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

This dark, damp, perilous tunnel is the only passage from north to south Tajikistan.

The largest dam in the world and the site of a potential disaster.

This remote, abandoned Soviet observatory promises spectacular views for those who can reach it.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

This Indonesian village was revitalized by a vibrant rainbow paint job.

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

Six miles off the coast of Key West, a former military transport ship is now one of the largest artificial reefs in the world.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an 8th-century Buddhist master.

This Himalayan airport provides one of the most difficult landings in the world.

The seat of the lost Ryukyu Kingdom has survived numerous fires and wars over the centuries.

Once the most densely populated place in the world, this island is now a ghost town.

The 43-mile route crosses through six islands with gorgeous views of the Seto Inland Sea.

The Hanshin Expressway goes right through its 5th, 6th, and 7th floors.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

This traditional Japanese-style house doubles as one of James Turrell's colorful works of art.

Inaccessible by foot, Japan's most secluded train station sits in the middle of nowhere.

A clerical error gave rise to this imaginary micronation in the southwestern corner of Estonia.

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

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

Scattered ruins and a tiny cemetery are all that remain of a failed attempt to colonize the inhospitable Desolate Islands.

A newspaper editor turned this abandoned island into a tortoise nature preserve that's now the world's smallest national park.

A mysterious, weather-beaten bus lies on the coast of Harris, enticing the curious to investigate.