Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Only hotel where you can legally launder money.

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

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

One of the deadliest American air disasters is nearly forgotten in Brooklyn.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A 200-year-old collection of oddities and medical paraphernalia.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

The largest game reserve in Africa is home to thousands of species but refuses to house humans.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

The most famous location in China was home to whole dynasties worth of imperial rulers.

An out-of-place slice of France, smack in the middle of Shanghai.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A symbolic graveyard for the villages that perished during the Nazi invasion of Belarus.

A condom-covered Thai restaurant that is more concerned with birth control than food.

This research center for rare prosimians is studying how they sleep to help prolong human life.

A giant chess set, minus the psychedelic drug trip.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

The former hotel where Tesla invented the radio.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A giant Troll lurks under one of Seattle's oldest bridges.

Commemorating the spot where the famous scientist fed his pigeons.