This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

Ancient serpentine sacrifice holder that has stood the test of time.

A marvel of Byzantine engineering under the streets of Istanbul.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

Fine dining in the bizarre world of Lewis Carroll.

The trials and tribulations of marking Poe's grave.

Eighteen miniature death-scene dioramas.

In the 19th century, this was the center of Boston's Black community.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Venice's "Island of the Mad."