A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

The highest point in Mississippi is a hilltop that was once used to bombard a nearby town with artillery.

A flat slab of stone perched hundreds of feet above the Gasconade River in the northern Ozark mountains.

Two Ming Dynasty lion statues guard the entrance to the journalism school.

This museum presents a dogged pursuit of 500 years of veterinary history.

European castle ruins in an American state park are actually the product of death and grief.

Bronze statue marks the spinach capital of the world.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The ruins of a pre-Columbian fortress city so secure it held off the Spanish conquistadors for over 20 years.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

An uninhabited village that preserves and documents rural architecture and an endangered way of life.

A spectacular walk on the flank of a gorge.

A historic Christian shrine nestled within a spectacular natural cave.

A Roman-style column in Oregon hides a spiral staircase inside.

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

Sumptous memorial to a controversial independence.

This harsh mountain path was built as a strange attempt to improve the health of Turkmen citizens.

If you want to get married in the White Marble City of Ashgabat, you should do it in this surreal disco ball building.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.