Mumbai, India
Mahakali Caves
Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.
Places I want to go
Places on this traveler's wishlist.
Mumbai, India
Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.
Athens, Greece
This ancient hydrological marvel is now the base of a modern outdoor cinema.
Gdynia, Poland
A World War II torpedo launch station abandoned off the Polish coast.
Zittau, Germany
This historic little railroad runs through some of the most beautiful scenery in Germany.
Denpasar, Indonesia
A haunting theme park is slowly being swallowed by the jungle.
London, England
A network of concealed passageways lies within a busy London Underground station.
Dandarah, Egypt
One of the most well-preserved temples of ancient Egypt.
Santa Coloma de Cervelló, Spain
The abandoned ruins of a beautiful medieval castle just outside Barcelona.
Moires, Greece
Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.
Pueblo, Colorado
A futuristic hovertrain is parked unceremoniously alongside a nondescript road.
Laconia, Greece
A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.
Patan, India
This magnificent stepwell is designed as an inverted temple and adorned with 1,500 sculptures.
Šibenik, Croatia
Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.
Naours, France
A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.
Nushabad, Iran
A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war.
Mexico City, Mexico
Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.
Kilwa Masoko, Tanzania
Stunning ruins of what was once the center of one of the greatest empires in East Africa.
Nice, France
The construction of a tram line unveiled hidden remnants of the old medieval city.
Golubac, Serbia
This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.
Paris, France
A subterranean shelter remains intact under a busy Paris railway station.
Narusawa-mura, Japan
A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest."
Caynton, England
This mysterious underground cave in Shropshire dates back to the 18th or 19th century.
Santo André, Brazil
The remains of a British railway rusting in the jungle mist of a Brazilian mountainside.
Chicago, Illinois
This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.