The hall of fame for circus performers.

Old cabin-like homes in a rural community untouched by time are known for their vibrant and colorful window shutters.

In 1859, the Virgin Mary supposedly appeared in this small town.

One of the last mosaic tile facades found in the city.

Largest Roman Catholic church in North America.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Eighty million natural history specimens call this gargantuan museum home.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Notorious artist squat renovated into legal studios.

An underground city of salt.

Krakow's own version of the Hollywood Walk of Fame.

Aruba’s first chapel.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

A line of blue paint marks the route of the inaugural parade.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Recorded as the first person buried in Arlington Cemetery.

The Pentagon is so large that it was planned like a city, complete with internal highway infrastructure.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Babe Ruth and others planted saplings for a 1930s tourism campaign. The saplings grew as the area faded.

An historic, one-lane, pedestrian suspension bridge on Kauai.

Hawai'i Volcanoes National Park is home to one of Polynesia’s largest petroglyph fields.