This downtown Dallas art installation is always on the lookout.

One of only two civilian settlements in the desolate lands of chilly Antarctica.

The best place to send your postcards home from Antarctica.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Natural time capsule containing an alien ecosystem.

The history of Mar Behnam Monastery is that of violence, intolerance, resiliency, and spirituality.

The world's largest version of this iconic puzzle cube is located in Knoxville, Tennessee.

This chestnut box will not be opened until the country music legend's 100th birthday in 2046.

Alongside this Memphis trail are several sculptures that show trail-goers how to relax.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

These early tent-shaped grave coverings are unique to Appalachia.

Home of an evil witch famous within southern folklore.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

This mysterious pyramid is said to be part of a complex web of occult and Freemason symbols.

One man's attempt to stay one step ahead of the church.

A small museum that celebrates the history and culture of the LGBTQ community in England.

These Victorian era devil sculptures were designed to spite a local vicar.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

A Roman spa buried deep beneath the City of London.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."