Beneath the bustling streets and historic buildings of Bologna lies a hidden world—an intricate labyrinth of tunnels that stretch out in all directions below the city. These subterranean passages have…

Unearth the secrets of Derinkuyu's mysterious underground city. Explore ancient tunnels, shifting timelines, and colossal endeavors.

Explore colorfullies195's 210 photos on Flickr!

There are so many creepy, beautiful, eerie, downright-captivating spaces under Cincinnati just waiting for you to discover. Here are several of them.

You don't have to be Nic Cage to know there's cool shit hidden under the sidewalks.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

photos: Jeisson Martin Beauty is everywhere, you just have to know where to look. I guess this also means taking some steps into forbidden territory sometimes.

Medieval, fortified and good food: Here are the best day trips from Luxembourg, including hidden gems and popular excursions!

The Qanat (Kariz) of Kish or Aqueduct of Kish dates back to 2500 years ago and is one of historical places in Kish island , Iran .The Qanat is located 16 m under the ground and its ceiling is covered by oysters and corals . It’s vastness is over 10000 square meters. Nowadays the qanat is changed to an underground city. author of photo: alirezaseydabady author of photo: alirezaseydabady Before the Roman aqueduct, the people of pre-Islamic Iran had developed their own hydraulic system called a qanat. A qanat is a series of vertical wells, built along a gentle slope to filter water toward arid areas. The Kish Qanat is an excellent example of this ancient technology and provides visitors with an opportunity to get face to face with the infrastructure of this amazing hydraulic system. The Kish Qanat is over 2,500 years old and filters water from the mountains to the dry valleys below through layers of the coral that comprise the island’s foundation. Kish is one of the only islands in the world that is made up of coral, and tunneling into the earth there allows for a unique look at the usually underwater specimen. Sixteen meters below the coral island, a series of tunnels near the wells snake through the earth for more than five miles. As the tunnels cut below the world, the Kish Qanat begins to look more like a massive underground city. Lately, architects hoping to draw tourists to the attraction have embraced that idea even more. Along with the historic coral walls around the qanat, workers have reinforced the tunnels with mortar and stone to create a subterranean world. Soon, visitors can peruse an update on the early hydraulic system that will feature vendors selling typical Iranian gifts along with a few subterranean restaurants and an amphitheater. Strangely enough, the unique historic element of the island is slowly mimicking its inner tourism side. author of photo: alirezaseydabady Sources: http://www.persiantourismguide.com/ http://www.atlasobscura.com/

When Truth Is Stranger Than Fiction

Son Doong Cave, or "mountain river cave," is the largest known cave in the world. It's located in the Quang Binh Province of Vietnam

Grotte di Camerano

An unorthodox adventurer of winding formations and incredible passeges of underground sites sometimes never seen by man and an expert navigator john Spies Is an Australian photographer hold a tag of experience of more than 30 years of guiding cave explorer under his belt. This adventurer has journeyed into the depths of over 80 caverns in Laos , Thailand, and Vietnam –including a few caves previously undiscovered by humans. His remarkable explorations have included trips to tham Xe Bang Fai - cave in laos containing the world’s largest gour pool – and Vietnam’s Hang Son Doong, the largest known cave in the world.

Group calls on followers to occupy the Underground.

From provocative playgrounds to chic cocktail dens, these nightspots prove there's more to London nightlife than quaint little pubs.

A day trip from Krakow in Poland, the Wieliczka Salt Mine lies as the legacy of generations that have been tied to the natural deposit of the mineral. Despite having been a functioning industrial mine, the mine is filled with great chapels and even underground lakes! The salt mine is an unforgettable place to visit.

Urban exploration in Duluth might just lead you to these epic underground streams.

How do you feel when you imagine being submerged in water? Is your inner mermaid thrilled by the idea (wish I could be part of that woooooorld), or do you consider yourself much more of a land creature? If thinking about ships and submarines that are resting peacefully at the bottom of the ocean brings you immense anxiety, you just might have submechanophobia. (Try saying that 5 times fast!)

Completed in 2012 in Teruel, Spain. Images by Miguel de Guzmán. Teruel’s underground, as thematic parks as Dinópolis want to spread, is full of discoveries that remind us the lost existence of a powerful life in...

A Tour of Underground Portland Ghost Adventures Shanghai Tunnels: situated near the bank of the most adorable river the Willamette River.

Shinjuku Station, the subcenter of Tokyo, famous for having the largest number of passengers in the real world, is surrounded by silence in Tokyo Genso World. The asphalt on Koshu highway, which runs in front of the south exit of Shinjuku Station, has been completely ripped up, the cars that once ran underground are submerged under water, and dolphins, rays, and fish are swimming freely.Tokyo Genso once said in an interview.“The dolphins appearing in my later works were inspired by this piece.”“I intended to express the world beneath the ground, and I think this piece succeeds in doing so.I think I was able to express something that we don't notice, or rather, something that we wouldn't notice if we were living a normal life.”It is no exaggeration to say that this work, which also appeared on the cover of "Tokyo Genso Artworks," is one of Tokyo Genso's masterpieces. On the Art Print, from EDITION88This work delicately depicts the blue color and texture of clear water, therefore we paid attention to the expression of that part in the art prints while balancing the overall colors.●Hand-signed by Tokyo Genso●Limited edition of 21●Medium: 88 Graph (Giclée on fine art paper）●White Frame (Wood, UV Resistant Acrylic) / Unframed ●Size　▸Image size 357 x 252mm / 14.05 x 9.92inch　▸Sheet size 397 x 302mm / 15.63 x 11.89inch　▸Frame size 525 x 410 x 20mm / 20.67 x 16.14 x 0.79inch●Officially licensed by Tokyo Genso●Manufactured by EDITION88●Certificate of Authenticity (C)TOKYO GENSO Please choose 'Frame' or 'Unframed'. SHIPPING DATE: Within 2 months after receiving your order Important Notice●Since this product is made to order, please allow a certain amount of time for shipping.　●Our products are shipped from Japan and may be subject to customs duties, import taxes, customs fees, etc. in the destination country. EDITION88 DOES NOT collect those fees directly and therefore those are not included in your total amount due.  Please read our policies before placing your order.

Listed for a whopping $17.5 million, this state-of-the art bunker in Tifton, GA, is a perfect place for the prepper in your life who needs a turnkey lair.

Luke Collins managed to get the whole station to look at the camera during rush hour

If you do not like looking at completely cool digital art depicting fantastical underground cities, then boy, are you in the wrong place and i do not understand you at all. Who doesn’t want t…

AD uncovers 11 subterranean structures around the world, from an event venue to a winery

REGAN VEST is a nuclear-protected bunker located 60 meters underground in Rold Skov. It was to be a civilian place of work and residence for the Danish government, royal house, etc. in a military e…

They say that a picture is worth a thousand words. Well, some incredible images are so astounding that a thousand questions bubble to the surface of our thoughts the moment we see them. In the 21st century, one of the first questions usually is: “Was this photoshopped?”

Spotlight by VernsPics on Flickr.