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

One of the oldest living oak trees in the Southeast.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The bronze uniforms commemorate the vital role of women during World War II.

This train station inspired the name of a 1970's rock band and provided the backdrop for their album cover.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

One of downtown Berlin's last reminders of its Communist past.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A fearsome dragon clings to a corner of Munich's city hall.

The telescope that discovered Neptune.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

An eerie site of reverence for those who have completed an epic journey.