This now abandoned restaurant provides some of the most amazing views of Lisboa.

These 400-year-old ruins are all that's left of the monastery where Ines de Castro was assassinated by the King of Portugal.

This tower once served as a radar station during the Cold War.

Panoramic views from the mountains over a facility built to provide tuberculosis patients with fresh mountain air.

A neolithic tomb converted into a tiny chapel.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

This overlooked museum houses an amazing collection of rare, antique typewriters.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

A beautiful but toxic fountain of mercury.