Beloved bar home to musicians of all eras and reputations.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

A long lost multi-cultural music venue used to reside in the bottom floor of Chicago's Flat Iron Building.

A speakeasy takes on Chicago's drinking culture.

An antiquated German apothecary on Chicago's North Side.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

This striking art museum holds an amazing series of curiosity cabinets.

The fossilized remains of ancient California redwoods.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

A museum dedicated to the history and exploration of both popular music and science fiction.

A walk through the historic city center, under the streets of Seattle.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The Cadillac Ranch for monster truck aficionados.

At 207 feet, one of the world's longest continuous escalators.

The ancient tomb acts as a calendar that keeps perfect time.

Berlin's old airport.

An old department store turned Nazi prison turned artist commune.

The most visited, and possibly most controversial, museum in Germany.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

A typical crusty old museum this isn't.