This area was created to save the region's koala population.

When it was built in 1916, this bridge was critical infrastructure for local farmers. Today, it's being restored for walking and biking.

The decommissioned submarine is now the symbol of a small, inland Australian town.

This gold mine–turned–swimming hole is the perfect summer picnic spot, immersed in nature and history.

Victoria's largest salt lake is a favorite haunt for photographers and stargazers.

A bright little alley in La Boca is a part of tango history.

A beautiful young girl said to have been buried alive in her coffin…

The humble tomb of an Argentine general, hand-built by his son using stones brought down from the Andes.

Constructed on the ruins of a convent, this tower saved countless lives.

The most southern point you can drive to in the Western Hemisphere.

The best place to send your postcards home from Antarctica.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

Ottoman-era houses lovingly preserved.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The best-preserved ancient theater in the world.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

A Turkish ghost town abandoned in a population exchange with Greece.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Roman ruins top white travertine terraces formed by ancient hot springs.

The ancient latrines of the Greeks, in all their public glory.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.