The Limes counts today as the longest and most famous archaeological monument Germany's. It runs on a total length of 550km from the Rhine north of Koblenz to the Danube west of Regensburg. It used to be the border between Rhine and Danube in the 2nd and 3rd century AD of the Roman provinces of Obergermanien and Raetien to the independent  Germanien. Big parts of the Limes remnants and the connected facilities have been a long time unfortunately either levelled or build over but at some places traces are still well visible.

33km of the Limes (= ca 6% of the total length) runs through the Rhein-Lahn-District. In its run through Arzbach, Bad Ems, Schweighausen, Pohl and Holzhausen it passes the borders of altogether 19 town and village communities of the district. Because big parts of the still preserved sections are in wooded areas or agricultural open land, it is best to discover the Limes walking.  The Limes-walking paths are well sign-posted and have several boards, which give interesting educational background information.  You can find details under www.rhein-lahn-info.de/limes.

For the monument caretaker and historian the remnants of the Limes depict a unique German floor monument. That's why the four Federal States Rheinland-Pfalz, Hessen, Baden-Württemberg and Bavaria through which the Limes runs have applied at the UNESCO in the year 2003 to put the Limes under protection as World Heritage Site.