The gardens of Schloss Homburg were re-landscaped in the latter half of the 18^th century, although some of the older baroque structure is still visible in places. To the east of the house, the Dutch Garden laid out at the end of the 17^th century betrays its origins as a baroque parterre. The landscape garden south-west of the building centres around a large pool. To the north-west, the kitchen garden and orchard reveal traces of formal geometry. As part of the landscaping process in the vicinity of the house, the landgraves extended the gardens north-west of their residence into the Taunus Hills. The Avenue of Firs and the Elizabeth Vista along this lady’s picturesque pleasure gardens were created between 1770 and 1840. The central palace park and the pleasure garden vista which extends to the Roman frontier, or Limes, constituted a total art work which has survived in its essential features down to the present. 

The free-standing 14^th-century keep towers high above the baroque buildings, grouped around two courts. Paul Andrich designed these in 1678 for Landgrave Friedrich II, the authentic hero of Kleist’s play ”Prince Frederick of Homburg”. This originally two-storey palace was the first new addition to a larger residential complex to be built after the Thirty Years War.

The display rooms exhibit many precious artistic objects dating from the 17^th to the 19^th century, bringing to life the domestic conditions, not only of the landgraves, but also of their Hohenzollern Emperors, who used Homburg as a favourite summer residence until abdication in 1918. The residential apartment in the English Wing, re-opened in 1995, reflects the personality, wealth and tireless collecting of Princess Elizabeth, daughter of the British King, who became Landgravine of Hesse-Homburg upon her marriage in 1818.