The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

These flying foxes dangle from the trees around the library like fuzzy black fruit.

These Australian rock formations look like Martian beehives that have grown up out of the landscape.

A town whose main resource was blue asbestos... what could possibly go wrong?

Alien rock formations grown from the sands of an Australian national park.

Visible from both land and sea.

This work of public art symbolizes the maritime history and the modern creative industry in Fremantle.

Ships still use this historic lighthouse to navigate dangerous, island waters.

The site of the climactic scene from the classic horror film is now a historic landmark.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Elevated freight railway turned wildly successful urban park.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

An exotic wildlife habitat right off The Strip.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.