Underground

The catacombs were built underground as a place of burial for the dead.

The underground tunnels were used for smuggling goods.

The thief buried the stolen goods underground to avoid detection.

The miners worked tirelessly to extract coal from the underground mine.

The underground pipes were damaged during the construction project.

The rabbit burrowed underground to escape the predator.

The bombs exploded underground during the war.

The roots of the plant grow underground in search of water.

The underground water supply is crucial for the survival of the ecosystem.

I prefer taking the underground instead of the bus.

The underground is a fast and efficient mode of transportation.

The underground trains are often crowded during rush hour.

The underground station is located just around the corner from the hotel.

The underground system connects different parts of the city.

The underground map can be confusing at first, but you'll get used to it.

Taking the underground is a great way to avoid traffic.

The underground network in this city is one of the oldest in the world.

I always feel safe when I travel on the underground.

The Hong Kong MTR is a modern and efficient underground railway network that connects Hong Kong and the mainland.

The New York City subway system is an extensive underground with 472 stations.

The Shanghai Metro is one of the fastest-growing underground transit systems in the world.

The Moscow Metro is the busiest underground system outside of Asia and the 4th busiest in the world.

The Madrid Metro is the sixth-longest underground system in the world, with over 300 stations.

The Berlin U-Bahn is the most extensive underground railway network in Germany.

The London Underground is one of the oldest underground railway networks in the world.

The Tokyo Metro is a busy underground system that serves millions of commuters each day.

The Boston T is the oldest underground transit system in the United States.

The subway station is located underground, and we need to take the stairs or escalator to access it.

The ants created an underground tunnel system for their colony.

The earthquake caused the underground pipes to burst and flooded the streets.

The pipes are laid underground to avoid obstruction on the roads.

The subterranean river flows underground, and we can only see it through cave exploration.

The underground parking garage is accessible only to residents of the building.

The underground pipe system transports sewage to the treatment plant.

The underground bunker was designed to withstand a nuclear blast.

The underground bunker was used as a shelter during the war.

The underground subway system is a convenient way to travel around the city.

The underground root system of the plant is important for absorbing nutrients.

The underground mining operation requires specialized equipment.

The underground network of tunnels was used by smugglers to transport goods.

The underground water table is a vital source of freshwater.

The underground gas storage facility is used to store natural gas.

The underground parking lot was completely flooded during the heavy rain.

The subway train travels through the underground tunnel.

The underground aquifer provided water to the surrounding areas.

The subway train runs through the underground tunnels.

The underground parking garage had many levels.

The underground can be home to many types of creatures.

The treasure was buried in a secret underground chamber.

The underground cave was filled with stalactites and stalagmites.