- Discover Belgrade's subterranean secrets on a 2.5-hour walking tour, led by an expert local guide. Go below ground to experience intriguing underground fortifications, spooky tunnels, and bunkers and caves carved out through the ages, from Roman times to the 20th century. Inspect the remnants of a Roman fortress and well; see a gunpowder warehouse built by Austrian forces to defend against the Ottoman Empire; and explore a military bunker from the time of the Cold War.
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- Free Cancellation