Not your typical monument to the fallen, this Lord of the Rings-style building is as intriguing on the inside as it is out, with its echoey crypt chambers containing large stone figures with colossal faces and closed eyes. Eight colossal medieval knights stand as silent tributes to fallen warriors, joined by the enigmatic "Guards of the Dead".

Ascend to the second level, known as the Hall of Fame, and you'll encounter four more giants, each an impressive 31 feet tall. Feeling adventurous? Conquer the 500-step climb and emerge onto the roof deck, where a breathtaking panorama awaits – a poignant reminder of the city's history and the sacrifices made to protect it.

Mysterious architecture and oddities from across Germany