A real-life "hobbit" cave in Flores, Indonesia.

The wing of this deserted Boeing 737 almost touches the Dunkin' Donuts next door.

One native village in Bali lays their dead at the foot of a holy tree whose natural fragrance seems to hide the stench as the bodies decompose.

Three wildly colorful calderas top this otherworldly volcano chain.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

This poignant display is now a memorial to these regionally extinct species.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

This morbid scene depicts the Darwinian drama of death on the African savannah.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

After surviving abandonment, this powerful Latin American mural is alive again.

This impressive scene portrays the elusive forest giraffe of Central Africa.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

The oldest surviving synagogue in New York City is now a soaring art space.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

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