A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

This demolished goliath of American industry once loomed over the depressed town it once made thrive.

A toxic ghost town sitting atop a massive coal fire.

A petite castle folly in the English countryside.

The world's largest collection of artifacts from our history of industrial gas use is hard to simply pass.

The gravestone of a delicate singer-songwriter bears a fittingly introspective epitaph.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Charles Babbage's proto-computer, painstakingly brought to life.

One of the world's southernmost bars.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

The largest of London's subterranean rivers and once a mad, bad center of London life.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

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

Hidden beneath the streets of London is a secret subway that only carried mail.

A hands-off space for graffiti artists to hone and display their skills.

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

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

Giant wind turbine with observation deck at the very top.