A small museum packed with specimens from important fossil sites and minerals from historical pegmatite quarries.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

These beautiful objects represent beautiful ideas.

The Lund University's former gym houses a museum focusing on the creative process of art.

A Saxony castle houses one of the largest and most outstanding mineral collections in the world.

The translucent turquoise hue of these natural swimming pools comes from a high concentration of minerals.

This wildlife refuge is home to more than 200 species of birds, as well as monkeys, lizards, and other wildlife.

Costa Rican accommodation resembles a crash site, but with a nice balcony.

There is a small island in the Gulf of Nicoya where the only human inhabitants are dead.

In Costa Rica's cloud forest, the roots of a woody ficus create a botanical bridge.

One Costa Rican island is so beset by illegal shark poachers that the local rangers have built an entire bridge with their confiscated gear .

Once the foundation for a mansion, these ruins now offer amazing panoramic coastal views.

Balanced rock sculptures pay tribute to a murdered conservationist and his pioneer wife.

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

These disused steel furnaces are now haunting ruins that may one day be a national park.

A historic ruin just 20 feet away from a busy highway onramp.

A remarkable time capsule of American manufacturing deep in Maryland coal country.

The place where Samuel "Slater the Traitor" brought the Industrial Revolution to America.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

The remains of a massive blast furnace in what was once one of the country's largest iron-producing regions.

This mill played a key role in the region’s development and it is just one of ten along the east coast of the United States.

These conical kilns measure an impressive 30 feet in diameter, and were once used to produce charcoal for a local blast furnace.