The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

An underexplored, 130-foot tropical waterfall that you will have all to yourself.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

An important Mayan religious and trading center dating back to 200 BC.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

A fountain standing as a testament to a doomed alliance.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

The controversial final resting place of the equally controversial first president of Turkmenistan.

A huge monument to a bizarre book written by Turkmenistan’s longstanding dictator.

Sumptous memorial to a controversial independence.

A dictator's gold statue once rotated to face the sun on a 75-meter high marble tower.

This famed Silk Road oasis was one of the largest cities in the world before it was destroyed by a Mongol horde.

This cavernous swimming spot doubles as a home to the largest known colony of bats in Central Asia.

A cemetery with goat-horn bedecked gravestones.

A fiery crater has been burning in the Karakum Desert since 1971.

Few people have ever heard of, let alone visited, one of Turkmenistan’s most impressive natural attractions.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.