The Australian lorikeets that like to tie one on in an annual drinking binge.

This historic observatory was established to keep shipwrecks from littering the Cape of Good Hope.

The deadliest diving spot in the world is also a stunning geological marvel.

A massive work of modern art that appears to be a crop circle in the middle of the desert.

An endless sea of white conical domes.

Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Massive galleon from a box-office bomb docked in Genoa.

Macbeth's infamous "Great Birnam Wood."

A museum marks and documents the site of the Titanic's launch.

Memorial to the Titanic engineers that died working to hold back the sea.

The Titanic sails again in one Scotland man's backyard.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

Set sail on a small scale.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

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

An unassuming secret door once led to a legendary watering hole.

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

Reverend Jen's unique museum/living room showcases her troll collection.

Mysterious 500-year-old tapestries depict a unicorn hunt.