Where two rivers meet—but don’t mix.

This flagpole ranks among the world’s tallest and can be seen from three countries.

The most confusing clock in New York.

Uganda's smallest savannah park is home to over 350 species of birds and mammals.

A strangely forgotten claimant to the much contested title of "Source of the Nile."

This small roadside eatery exists in both the Northern and Southern hemispheres, as the equator runs right through it.

Where the White Nile River dramatically cascades between Lake Kyoga and Lake Albert in Uganda.

The home of half the world's population of critically endangered mountain gorillas.

Caves famous for the dragon-slaying saint who lived there.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

America’s smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

Cryptic messages embedded in the New York City sidewalk.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This work of engineering is imbued with elegance and ingeniousness.

Concentrated around the Dead Sea, these surprising canyons are filled with coursing water, fish, and even crabs.

Ancient rock-hewn town that witnessed key events of Georgian history.

This effigy of Peter the Great is greatly disproportionate.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Lines on the pillar of Heidelberg's Karl-Theodor Bridge record the dramatic heights of past floods.

It's good luck to be mocked by this monkey.

A preserved college lock-up that recalls a clubhouse approach to discipline.

A larger-than-life monument to the inventor of the Bunsen burner.

In this German city center, the streets have no names.