In the Shawnee National Forest, amazing rock formations peer through the treeline.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Portlandia is the second-largest copper repoussé statue in the United States.

Building this tragically pointless stone barrier cost the lives of the prisoners made to build it.

Since the 1700s, this old barrel has acted as a post box that relies on the kindness of travelers.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

Largest lake in Great Britain measured by surface area.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

A moody and picturesque riverside ruin overgrown with vegetation.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

Hindu temple of the dead home to hundreds of long-tailed macaques.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

Watch the newest land on the planet form before your eyes.

This black shoreline is made up of exploded lava particles.

This legendary urban waterfall creates a dazzling display of rainbows.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.