The Avenue of Mausolea is a series of grand palatial tombs.

The building that inspired Shirley Jackson's "The Haunting of Hill House."

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

A beautiful maze marks where three countries meet.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

The Uros people live on floating reed islands in lake Titicaca.

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

The world's oldest and largest museum of mass transit vehicles.

This zombie-themed restaurant stands out in the heart of corn country.

The legendary building that needed ghostly approval before being built.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

The last municipal pneumatic post system in the world was in operation for over 100 years, and may run again.

Yale University's home for rare works, including the mysterious Voynich Manuscript.