Railroad came. People came. Railroad left. Town died.

Walk the whole Mississippi River!

Test your mettle against the hottest hot chicken in Nashville.

Enormous lake at the bottom of a unique cave system.

Walk in the footsteps of the famed astronaut at Purdue University.

This stately clubhouse has showcased German-American culture for over a century.

This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

The frozen treats at this Cape Town parlor are inspired by Africa's food cultures.

Caves that can't seem to quit producing the remains of prehistoric humans.

A safari-themed castle in the South African bush with the largest maze in the southern hemisphere.

Is this 200-meter-wide nature reserve the smallest desert in the world?

Tiny pyrophyllite spheres from 3 billion years ago.

All that remains of a Japanese fishing vessel that ran aground in 1982.

Mined to a depth of 240 meters with a perimeter of about 1.6 km, the largest hand-dug excavation in the world.

An ancient impact crater on the outskirts of Pretoria.

The original goat tower, the one that started it all.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

Hidden in the hills is a mysterious stone structure, known only to a few.

This underground holding cell was forgotten for over a century and rediscovered in the 1960s.

A moving tribute to a leader of the American abolitionist movement.

The mounds at this site were reconstructed with the help of archaeologists and historians.

This garden memorial marks the site where 12-year-old Tamir Rice was fatally shot by the Cleveland Police Department.