With the free “Ludwig II” app, smartphone users can access info about 140 locations in Bavaria and the rest of Europe related to the king’s life (1845-1886), plus 400 photographs, a calendar of historical events and video interviews and audio quotes regarding the architecture, politics, music and technology of Ludwig’s era. The “augmented reality” features include a simulation of Ludwig’s Winter Garden in Munich (which no longer exists). If you hold your smartphone in front of a site, the...

The “Tali Wiru Experience,” a dinner served on an isolated dune with a view of Uluru and the distant Olgas, is offered April 1, 2012, to Jan. 15, 2013, by Ayers Rock Resort in Australia (phone +61 2 8296 8010, fax +61 2 9299 2103, e-mail travel@voyages.com.au). Tali wiru means “beautiful dune” in the Aboriginal language Anangu. For AUS295 (about $313) each, no more than 20 guests are picked up from the resort’s six hotels and taken to Tali Wiru, where they will walk 250 meters on soft sand...

In Australia, hot-air balloon flights to view Uluru (Ayers Rock) from afar are offered by Outback Ballooning (P.O. Box 2702, Alice Springs, NT, Australia 0871; phone +61 0 8 8952 8723). Guests are picked up from their hotels at Yalara before dawn and driven to the takeoff site 10 to 25 kilometers south of the rock. The flight, itself, covers about 10 kilometers in 45 to 60 minutes, while the entire excursion takes four to five hours. In 2012, flights run March 1-Oct. 31 and cost AUD450 (near...