Mark Twain first visited Paris July 6, 1867 as part of his "Innocents Abroad" excursion. In late February of 1879 he returned with his family and stayed until July. "The weather was miserably cold; he suffered from rheumatism and dysentery and spent most of his time in bed." Again in June of 1891, he passed through the city returning three years later for a stay of from March until June of 1894, then from October 1894 through May of 1895. (Mark Twain A to Z)

Le Havre (/lə ˈhɑːv(rə)/, French: [lə ɑvʁ(ə)]; Norman: Lé Hâvre [lɛ ɑvʁ(é)]) is a major port city in the Seine-Maritime department in the Normandy region of northern France. It is situated on the right bank of the estuary of the river Seine on the Channel southwest of the Pays de Caux, very close to the Prime Meridian. Le Havre is the most populous commune of Upper Normandy, although the total population of the greater Le Havre conurbation is smaller than that of Rouen. After Reims, it is also the second largest subprefecture in France.

For most of its 1,200 year history, Bremen was an independent city within the confederal jurisdiction of Germany's Holy Roman Empire.

Franzenbad, Kaiserhaus Hotel.

Františkovy Lázně  German: Franzensbad) is a spa town in Cheb District in the Karlovy Vary Region of the Czech Republic. It has about 5,500 inhabitants. Together with neighbouring Karlovy Vary and Mariánské Lázně, it is part of the renowned West Bohemian Spa Triangle.

Archaeology has shown continuous occupation of the site of Bad Tölz since the retreat of the glaciers at the end of the Ice Age. For example, there are finds from the Hallstatt culture as well as from Roman Raetia, or at least occupation by romanized Celts.

See Bædeker Southern Germany and Austria, 1891 page 121

The Brenner Pass (German: Brennerpass [ˈbʁɛnɐpas], shortly Brenner; Italian: Passo del Brennero [ˈpasso del ˈbrɛnner

Hotel Trient, unable to locate.

 Deep in the valley below, dashes the brawling Trient ( which joins the Eau-Noire a little farther on) . Where the forest is quitted , the valley widens , and we reach ( ½ hr. ) the village of Trient (4249 ' ; Hôtel du Glacier de Trient), a little beyond which the present route unites with that from Chamouny over the Col de Balme ( see below) .

Bædeker Switzerland (1877) Route 54 page 231

Sam and companions merely passed through by train on their way to Venice, July 20, 1867.
Mark Twain Project: Quaker City Itinerary

Bædeker Northern Italy (1877) Route 32 page 182