A 20th-century picture show in 3-D.

A hidden art gallery in an abandoned Warsaw fort.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

A monument to the 17,000 Chinese who worked and died to build Canada's Pacific Railway.

A unique collection of Science Fiction, Fantasy, and everything in-between.

Smallest house in Toronto sits on a lot meant to be just wide enough for cars to drive through.

Lost subway station nestled beneath Toronto's busy commuter line.

A hunk of prehistoric lava rests amid the Gothic architecture of a campus quad.

A 19th-century time capsule of travel, fiction, and historic texts still available to the public.

An underwater city for the dead.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.