A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

The oldest housing complex in Riga is a mini timeline of architectural trends.

3,000 market stands in five former Zeppelin hangars.

The scorched Lisbon church that survived two earthquakes and a massive fire.

Eat the ultimate iteration of Portugal's most beloved pastry.

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

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Known as "Toronto's Flatiron."

This half-ton piece of the Alps sits at the base of the CN Tower.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

One of the largest underground systems runs under Canada's largest urban center.

The Incredible Hulk, Yoda, Mulder and Scully, and many many others watch over the mean streets of Toronto.

An out-of-place slice of France, smack in the middle of Shanghai.

According to Greek mythology, this natural spring is the home of a freshwater nymph.

An oasis of shade and color amidst the bustle of the old city.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

The oldest inn in England served brew to the crusaders.

The castle still holds traces of the abandoned Roman fort it was built atop.