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

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

This controversial statue once honoured a Russian Field Marshall, before ultimately being dismantled in a push to remove symbols of Russian influence.

Tel Aviv's popular neighborhood went though endless waves of transformation.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

This full-sized orange tree lives suspended in mid-air above the streets of Jaffa.

A small and surprising passageway in Saint Petersburg devoted to the Beatles.

An art museum inside an active factory.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

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 fountain standing as a testament to a doomed alliance.

This museum was invented in a novel before being made real by the author.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

Roman ruins top white travertine terraces formed by ancient hot springs.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

Flames have been burning within this mountain for more than 2,500 years.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

This large, circular tomb is the final resting place of the first emperor of Rome.

A hidden three-foot-wide house separates these two regal churches.