Bad Homburg, spa town to royalty and Russian nobility during the 19th century, is a short train ride from Frankfurt (train details details below). It's a great place to spend the day enjoying the beautiful Kurpark, the Schloss Homburg gardens, the great variety of architecture, and the numerous cafes and restaurants for refreshment.
Bad Homburg Kurpark
In the 19th century, the Russian nobility flocked to Bad Homburg to enjoy the spa baths and casino located in the Kurpark, a beautiful park landscaped by Peter Joseph Lenné and lovingly maintained to this day. The park has a Russian orthodox church and two Siamese temples. The first Buddhist temple, inaugurated in 1914, was sent as a gift by King Chulalongkorn of Siam. Later in 2007 the Thai royal family sent another temple to commemorate the long standing ties between the town and Thailand. Back in the 1800's the German royal family constructed a spa house in the park. The Kur Royal Day Spa, is still open to the public and and there is also the more modern Taunus Therme baths. After the Kurpark wander along the streets nearby e.g. Landgrafenstraße towards the high street, which are filled with fine examples of art nouveau architecture.
Bad Homburg High Street
Bad Homburg high street (starting at the southern end of Louisenstraße) is pedestrianised, which makes for a pleasant, traffic free stroll up toward Schloss Homburg. There are plenty of places to grab a coffee and have a break, of particular note is Eiscafe De Pellegrin, Louisenstraße 9, serving excellent ice-creams. Don't forget to check the side streets for some 'off the beaten track' restaurants (Audenstraße has quite a few).
At the northern end of the high street is the Schloss Homburg, the summer residence of Kaiser Wilhelm II. Today, the gardens are open to visitors and the main entrance is on Dorotheenstraße. Beside the main entrance is the Erlöserkirche, commissioned by the Kaiser, with a lavish interior presenting a mix of byzantine and art nouveau styles.
Edward VII was a regular guest at the Schloss and is credited with making famous the Homburg hat, which is still produced in Bad Homburg today. The original Homburger Hutsalon (hatters shop), is on Rathausstraße 8, in a beautiful 16th century building, surrounded by other beautifully restored timber-framed houses.
If you enjoy architecture, on returning back to the station, instead of walking along the high street, take the route along Dorotheenstraße, starting at the Schloss, and enjoy the lovely examples of 18th century Baroque housing. Along the way is the beautiful church of St. Marien.
Trains to Bad Homburg and map
Bad Homburg can be reached in 21 minutes by taking the S5 from Frankfurt Hauptbahnhof (or directly from Frankfurt city centre at Hauptwache and Konstablerwache) Trains run every 15 minutes on weekdays and every 30 minutes at weekends. A single ticket costs 4,80€, a day card costs 9,35€ or, if there is between two to five people travelling, a group card is only 16,40€ (prices correct as from June 2017) If you have a Frankfurt travel-card, you will need to pay a 2,95€ supplement each way. The Bad Homburg tourist information web page has lots of additional information.