Fyllingsdalstunnelen in Fyllingsdalen, Norway

Iver Daaland Åse From the resting area in the middle of the tunnel. Iver Daaland Åse Opened in 2023, this tunnel is 2.9 km long (about 1.8 miles). Very useful for pedestrians, bicyclists, various exercising in a city where it rains almost all year.

Now also easily binding together two parts of the city that previously was parted by a mountain and took a long time to travel around. Nice resting area in the middle as the tunnel there has a hall. Very colourful light throughout the entire tunnel that change now and then as one passes through the tunnel.

Separate lanes for pedestrians and bicyclists. The tunnel runs in parallel with the city tram with an access tunnel for safety between the two. High security precautions throughout the entire tunnel.

Get more unusual and extraordinary places each week with the Atlas Obscura Places newsletter. Your newsletter subscriptions with us are subject to Atlas Obscura's Privacy Policy and Terms of Use. Be aware those who think they are world champions on bicycles exercising in the tunnel, and whole sport teams that might also think it their tunnel only!

Also some speeders on electric scooters now and then to look out for. On the outside of the Mersey Tunnels, an Art Deco sculpture of an Egyptian Pharaoh wears goggles and racing gear. This statue of one of the engineers who created the London Underground hides a ventilation shaft for the tube lines that run under the street.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project. Curious onlookers have suspected this strange structure is a secret government base. It was meant to help transport wounded soldiers to a secret underground hospital. ## Become an Atlas Obscura Member * * * Join our community of curious explorers.