One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

London's smallest police station is barely the size of a phone booth.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

A heavenly experience, right here on Terra Firma.

Museum preserving torture methods from the past.

The first declared National Monument in the United States.

Famously misunderstood wonder of the ancient world

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The Pope’s secret escape route.

2300-year-old Roman road connecting the empire.

Go inside to really appreciate this 500-year-old technological masterpiece.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This futuristic German television spire is actually the world's largest digital clock.

Carved fountains poignantly placed in parks and in front of special monuments.

A restaurant and observation deck built in a unique broadcasting antenna.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.