To get to the "Top of the World of Europe," Jungfraujoch, we boarded the Jungfrau train, a line that climbs up the steep mountainside of Mt. Eiger, through meadows of wildflowers and past glacier fields and then the train tunnels deep into the mountain.
At Jungfraujoch we had a full day playing in the snow in July! Ziplining and sledging (yep, it's called sledging here).
The weather observatory was at the tip top of the mountain with amazing views of the glacier field and the green side of the mountain as well.
The best ending was an ice cave/palace. The floor was ice, the walls were ice, the tunnels were ice. Ice carvings were on display throughout.