These azure waters were thought to lead to the Mayan Underworld.

Fighting the British and making game shows for over 150 years.

Each year a new straw behemoth is born.

The internet as provided by a James Bond villain.

The Seven Story Pagoda of Sibu.

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

A blooming house of worship for the masses.

A former French military respite turned jungle tourism hotspot.

China's mysterious record-setting sleeping Buddha.

A trash dump made beautiful by nature's power.

An emerald-green grotto just a short trip from Austin.

China's beehive-shaped pyramids house the remains of a lost kingdom.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

The coldest city in the world.

A perfect turquoise lake colored with glacier dust.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

Myanmar's Mount Olympus atop a 2,500-foot volcanic plug.

The hottest place on the planet.

A 1970s resort city now stands abandoned, caught in the middle of a divided island.

Giant pigeon houses packed into city streets in Egypt.

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.

The deserted remains of a luxury hotel turned hospital ward.

These strikingly barren, rolling red hills were caused by bad farming practices.

Siberian ghost town built by gulag prisoners.