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

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

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

Hans Christian Andersen for the postmodern world.

Copenhagen's celebrated theme park and gardens.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

“Invented in Key West, Perfected in Brooklyn."

This abandoned subway station can still be seen on regular commuter trips.

The loneliest island in New York.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

New York City's smallest piece of private property.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

This 100-foot tall bluff located in the western plains of Kansas overlooks a massive reservoir.

This lesser-known geographic marker was the reference point for all surveys of the continent for 75 years.

A diverse, expansive nature preserve in northeastern Kansas.

Massive still life just off the highway in Kansas.

A small island with shimmering pink sands, home to loggerhead turtles and rare plants.